Taylor Swift through the years

Taylor Swift performs during the DIRECTV NOW Super Saturday Night Concert at Club Nomadic in Houston on Feb. 4, 2017.

Taylor Swift performs during the DIRECTV NOW Super Saturday Night Concert at Club Nomadic in Houston on Feb. 4, 2017.

Taylor Swift presents the award for entertainer of the year at the 50th annual CMA Awards in Nashville, Tenn., on Nov. 2, 2016.

Singer-songwriter Taylor Swift performs her only full concert of 2016 during the Formula 1 United States Grand Prix at Circuit of The Americas on Oct. 22, 2016 in Austin, Texas.

Taylor Swift performs on stage during the 58th Annual Grammy Awards in Los Angeles, Calif., on Feb. 15, 2016.

Singer Taylor Swift performs during her "1989" world tour at MetLife Stadium in East Rutherford on Friday, July 10, 2015.

Taylor Swift at 2014 KIIS FM's Jingle Ball on Friday Dec. 5, 2014, in Los Angeles, California.

Taylor Swift performs at the KIIS FM's Jingle Ball at the Staples Center on Friday, Dec. 5, 2014, in Los Angeles.

Singer Taylor Swift performs at the Victoria's Secret fashion show in London, Tuesday, Dec. 2, 2014.

Taylor Swift, whose mother is battling cancer, responded directly to a Massapequa fan in need of consolation who had reached out to the recording star.

Taylor Swift

Taylor Swift performs on the runway at the annual Victoria's Secret fashion show at Earls Court on December 2, 2014 in London.

Taylor Swift in her music video for "Blank Space," filmed at Oheka Castle.

Taylor Swift performs on ABC's "Good Morning America" in Times Square on Thursday, Oct. 30, 2014, in New York.

Taylor Swift performs on stage at CBS Radio's second annual We Can Survive concert at the Hollywood Bowl on Friday, Oct. 24, 2014, in Los Angeles.

Taylor Swift arrives at the iHeart Radio Music Festival in Las Vegas on Sept. 19, 2014.

Taylor Swift performs at the iHeartRadio Music Festival at the MGM Grand Garden Arena on Sept. 19, 2014 in Las Vegas, Nevada.

Taylor Swift arrives at the MTV Video Music Awards at The Forum on Sunday, Aug. 24, 2014, in Inglewood, Calif.

Taylor Swift visits "The Tonight Show Starring Jimmy Fallon" on Aug. 13, 2014, in Manhattan.

Brenton Thwaites, Katie Holmes, Odeya Rush, Taylor Swift and Cameron Monaghan arrive at the New York premiere of "The Giver" at the Zeigfeld Theater on Monday, Aug. 11, 2014, in Manhattan.

Taylor Swift and Ansel Elgort onstage during the Teen Choice Awards at The Shrine Auditorium on Aug. 10, 2014, in Los Angeles, California.

Taylor Swift speaks onstage during the Taylor Swift for Keds style icons event on May 8, 2014, in Glendale, Calif.

Taylor Swift at the 71st annual Golden Globe Awards in Beverly Hills, Calif., on Jan. 12, 2014.

Taylor Swift arrives for the BBC Radio 1 Teen Awards 2013 at Wembley Arena in west London. (Nov. 3, 2013)

Taylor Swift poses with fans as she arrives for the BBC Radio 1 Teen Awards 2013 at Wembley Arena in west London. (Nov. 3, 2013)

Taylor Swift with her Moonman for best female video (for "I Knew You Were Trouble") at the 2013 MTV Video Music Awards at the Barclays Center in Brooklyn. (Aug. 25, 2013)

Taylor Swift onstage at the 2013 MuchMusic Video Awards in Toronto, Canada. (June 16, 2013)

Taylor Swift at the Capital FM Summertime Ball in London. (June 9, 2013)

Taylor Swift performs onstage during her Red tour in Washington D.C. (May 11, 2013)

Taylor Swift arrives at the BRIT Awards 2013 at the o2 Arena in London. The singer wore a belted Elie Saab gown and gold Neil Lane jewels. (Feb. 20, 2013)

T Bone Burnett and Taylor Swift accept the award for song written for visual media for "Safe and Sound" (From The Hunger Games) at the 55th annual Grammy Awards. (Feb. 10, 2013)

Taylor Swift performs at the 55th Grammy Awards in Los Angeles. (Feb. 10, 2013)

Taylor Swift arrives at the 55th Grammy Awards in Los Angeles. (Feb. 10, 2013)

Taylor Swift attends the NRJ Music Awards 2013 at Palais des Festivals in Cannes, France. (Jan. 26, 2013)

Taylor Swift arrives for the 34th People's Choice Awards Jan. 9, 2013, at the Nokia Theatre in Los Angeles.

Singer Taylor Swift performs during the New Year's Eve 2013 celebration in Times Square. (Dec. 31, 2012)

Taylor Swift performs onstage during Z100's Jingle Ball 2012, presented by Aeropostale, at Madison Square Garden in Manhattan. (Dec. 7, 2012)

Singer Taylor Swift speaks onstage at the 2012 Ripple Of Hope Gala at The New York Marriott Marquis. (Dec. 3, 2012)

Taylor Swift arrives at the 40th anniversary American Music Awards in Los Angeles. (Nov. 18, 2012)

Taylor Swift arrives at the 46th annual Country Music Association Awards at the Bridgestone Arena in Nashville, Tenn. (Nov. 1, 2012)

Taylor Swift performs during the 46th annual CMA Awards at the Bridgestone Arena in Nashville. (Nov. 1, 2012)

Taylor Swift peforms at ABC News' "Good Morning America" Times Square Studio in Manhattan. (Oct. 23, 2012)

Taylor Swift attends the BBC Radio 1 Teen Awards in London. (Oct. 7, 2012)

Taylor Swift arrives at the 2012 MTV Video Music Awards at Staples Center in Los Angeles. (Sept. 6, 2012)

Musician Taylor Swift attends the annual Nashville Symphony Ball at the Schermerhorn Symphony Center in Nashville, Tennessee. (Dec. 10, 2011)

Giancarlo Guerrero (from left), musician Taylor Swift and Alan Valentine attend the annual Nashville Symphony Ball at the Schermerhorn Symphony Center in Nashville, Tennessee. (Dec. 10, 2011)

Taylor Swift poses on the red carpet at the 2011 Billboard Women In Music Awards in Manhattan. (Dec. 2, 2011)

Taylor Swift

Taylor Swift is one of the best-selling artists of all time, having sold more than 40 million albums around the globe. The star currently has 10 Grammy awards, 21 Billboard Music Awards, 11 Country Music Association awards, and 8 Academy of Country Music awards. Her tracks, including "Blank Space" and "Bad Blood," hit No. 1 in the United States, Australia and Canada.

Singer Taylor Swift accepts favorite country album award during the 2011 American Music Awards at Nokia Theatre L.A. LIVE in Los Angeles. (Nov. 20, 2011)

Taylor Swift poses with the Performer of the Year award at the 45th annual CMA Awards at the Bridgestone Arena in Nashville, Tenn. (Nov. 9, 2011)

Taylor Swift performs at the 45th annual CMA Awards. (Nov. 9, 2011)

Taylor Swift arrives at the 45th Annual CMA Awards in Nashville. (Nov. 9, 2011)

Musician Taylor Swift attends the "Alexander McQueen: Savage Beauty" Costume Institute Gala at The Metropolitan Museum of Art in Manhattan. (May 2, 2011)

Taylor Swift and Stevie Nicks

Singer Taylor Swift arrives at the Vanity Fair Oscar party hosted by Graydon Carter at Sunset Tower in West Hollywood. The singer, who's ex Jake Gyllenhaal also attended the Vanity Fair party, wore a short sparkly gold Zuhair Murad dress. (Feb. 27, 2011)

Singer Taylor Swift attends the 2011 People's Choice Awards in Los Angeles. (Jan. 5, 2011)

Taylor Swift with awards for BMI Songwriter of the Year and Co Writer of BMI Song of the Year at the 58th Annual BMI Country Music Awards at BMI on November 9, 2010 in Nashville, Tennessee.

Taylor Swift attends the 58th Annual BMI Country Music Awards at BMI on Nov. 9, 2010 in Nashville, Tennessee.

Taylor Swift performs at the 45th Annual Academy of Country Music Awards in Las Vegas on Sunday, April 18, 2010. (AP Photo/Matt Sayles)

Singer Taylor Swift performs live for JetBlue Airways at JFK Airport in Manhattan. (Oct. 27, 2010s)

Musician Taylor Swift unveils her wax figure at Madame Tussauds in Manhattan. (Oct. 27, 2010)

FILE - In this May 3, 2010 file photo, Taylor Swift arrives at the Metropolitan Museum of Art Costume Institute gala in New York. (AP Photo/Evan Agostini, file)

Taylor Swift at a photo shoot for Cover Girl cosmetics.

Taylor Swift performs at the 45th Annual Academy of Country Music Awards in Las Vegas on Sunday, April 18, 2010. (AP Photo/Matt Sayles)

Singer Taylor Swift arrives at the 45th Academy of Country Music Awards in Las Vegas, Nevada, on April 18, 2010. AFP PHOTO / GABRIEL BOUYS (Photo credit should read GABRIEL BOUYS/AFP/Getty Images)

Taylor Swift arrives at the Grammy Awards on Sunday, Jan. 31, 2010, in Los Angeles. (AP Photo/Chris Pizzello)

Singer Taylor Swift poses with the Favorite Female Artist Award in the press room during the People's Choice Awards 2010 held at Nokia Theatre L.A. Live on January 6, 2010 in Los Angeles, California.

In this image released by Hope for Haiti Now, Taylor Swift performs at "Hope for Haiti Now: A Global Benefit for Earthquake Relief", in Los Angeles. (Jan 22, 2010)

Country artist Taylor Swift poses in the press room with her Video of the Year, Album of the Year, Female Vocalist of the Year and Entertainer of the Year awards during the 43rd Annual Country Music Awards in Nashville, Tenn. Wednesday, Nov. 11, 2009.

Country artist Taylor Swift performs during the 43rd Annual Country Music Awards in Nashville, Tenn. Wednesday, Nov. 11, 2009.

Pop singer Rihanna, left, poses with country singer Taylor Swift backstage after an appearance on MTV's "Total Request Live" on June 17, 2008, in Manhattan.

Beyoncé and Taylor Swift on stage at the 2009 MTV Video Music Awards at Radio City Music Hall in Manhattan on Sept. 13, 2009.

Singer Kanye West takes the microphone from singer Taylor Swift as she accepts the Best Female Video award during the MTV Video Music Awards on Sunday, Sept. 13, 2009, in Manhattan.

Singer Kanye West takes the microphone from singer Taylor Swift as she accepts the Best Female Video award during the MTV Video Music Awards on Sunday, Sept. 13, 2009, in Manhattan.

Taylor Swift performs at Madison Square Garden Thursday. (Aug. 27, 2009)

Taylor Swift performs during the 2009 CMA Music Festival at LP Field in Nashville, Tennessee.

Pop singer Rihanna, left, poses with country singer Taylor Swift backstage after an appearance on MTV's "Total Request Live" on June 17, 2008, in Manhattan.

Singer Taylor Swift poses for photographers as she arrives for the Academy of Country Music Awards, Tuesday, May 23, 2006, in Las Vegas.