Sometimes it's not their fault. They're only human. Some stars have had anger-management problems; others have had addictions or other issues. And some were just jerks.

See the most regrettable moments from celebrities including Alec Baldwin, Ariana Grande, Justin Bieber and more.

Kathy Griffin

Credit: AFP, Getty Images / ROBYN BECK

Video and photos of comedian Kathy Griffin holding up a prop depicting President Trump's bloodied, severed head circulated on Instagram on Tuesday, May 30, 2017. Though she removed the images later that day and issued an apology via Instagram video, the project Griffin originally called an "artsy fartsy statement" with celebrity photographer Tyler Shields sparked backlash across political lines and from Trump himself, who tweeted, in part, "Griffin should be ashamed of herself. .... Sick!" The following day, CNN fired Griffin from its New Year's Eve program, a New Mexico casino canceled her upcoming performance, and the Squatty Potty company drop her endorsement deal.

Billy Bush and Donald Trump

Credit: Getty Images / Rob Kim

"Access Hollywood" and "Today" show host Billy Bush, left, took part in a lewd conversation with 2016 presidential candidate Donald Trump back in 2005. After The Washington Post published audio from their conversation -- in which Trump bragged to a receptive Bush about kissing and grabbing women without their consent -- Bush was suspended from "Today." NBC, which owns both shows as well as Trump's "The Apprentice," cut ties with Bush soon after. This photo was taken in 2015.

Joe and Teresa Giudice

Credit: Getty Images / Steve Mack

"The Real Housewives of New Jersey" stars Giuseppe "Joe" Giudice and Teresa Giudice were sentenced to 41 months and 15 months in prison, respectively, due to fraud charges on October 2, 2014, according to usmagazine.com. They were able to serve their sentences subsequently, so one parent could stay home at a time with their children.

Taryn Manning

Credit: Getty Images / Dimitrios Kambouris

The "Orange is the New Black" star allegedly has a violent history. According to People.com, Manning was involved in an alleged fight with her makeup artist, Holly Hartman, in November 2015. According to the legal documents, Manning headbutted Hartman, sprayed her with Windex and put her in a headlock. Manning was also arrested for assaulting Hartman in 2012, although the charges were later dropped.

Chanel West Coast

Credit: EPA / Nina Prommer

Entertainer and MTV star Chanel West Coast was arrested after an alleged fight at a West Hollywood night club in August 2014. According to People.com, the reality star began with a fight within the nightclub with another patron and then upon being asked to leave began fighting with security guards. After spending the night in jail, the entertainer, whose real name is Chelsea Chanel Dudley, posted a photo of herself on social media with the caption, "I was assaulted by police last night for no reason and have bruises all over my arms."

Kanye West

Credit: Matt Sayles/Invision/AP / Matt Sayles

Kanye West stormed yet another award stage in January 2015, this time at the Grammys, after singer Beck came up to accept his award for album of the year. This time the singer left the stage before saying anything and the whole thing seemed to be a joke. Nonetheless, West apologized on Twitter, writing, "I would like to publicly apologize to Beck. I'm sorry Beck."

Scott Disick

Credit: Getty Images for Women’s Health / Paul Zimmerman

Scott Disick reportedly stole from a hotel and then trashed his room with friends in January 2015. According to TMZ.com, Disick reportedly stayed at Hotel Jerome with friends, where they stole a bottle of booze from the bar and then proceeded to trash their hotel room. The hotel charged Disick $900 for both the bottle and the room.

Sean "Diddy" Combs

Credit: Getty Images/ Jamie McCarthy

Rapper Sean "Diddy" Combs aka Puff Daddy was arrested following a fight with a UCLA football coach on Monday, June 22, 2015, according to FoxNews.com. The fight was allegedly over the coach's treatment of Combs' son, Justin, who plays defensive back. The rapper was able to post bail that night.

Shia LaBeouf

Credit: Getty Images / Rob Kim

Shia LaBeouf has recently become known for his erratic behavior. In November 2015, Refinery29 reported that LaBeouf opened up about his series of arrests, dating back to age 9 when he stole a pair of shoes. At the time, his most recent arrest was in October 2015, when he was charged for being publicly intoxicated. In June 2014, LaBeouf was arrested twice, once for disorderly conduct after interrupting a performance of "Cabaret" and then confronting and chasing a homeless man in New York City.

Vanessa Hudgens

Credit: Getty Images / Frazer Harrison

In February 2016, the actress posted a photo on Instagram of her own name and the name of her boyfriend, Austin Butler, carved into a rock in Sedona, Arizona. According to nbcnews.com, Hudgens was then cited for a misdemeanor count for damage to a natural feature on U.S. Forest Service land. Hudgens ended up paying $1,000 in restitution.

Solange Knowles

Credit: Getty Images for 2016 Essence Fe / Paras Griffin

On May 4, 2014, TMZ released security footage of singer Solange Knowles appearing to hit her brother-in-law Jay Z in an elevator while her sister, Beyonce, stands calmly to the side. Knowles later addressed the altercation in the August 2014 issue of Lucky, saying, "What's important is that my family and I are all good."

Ariana Grande

Credit: Getty Images / David Becker

In July 2015, the "Dangerous Woman" singer was caught on a security camera licking doughnuts in a doughnut shop in California as well as saying she hates America. Grande later issued a statement that her words were "taken out of context."

Lindsay Lohan

Credit: AP

The "Mean Girls" star, raised in Cold Spring Harbor and Merrick, was sentenced in March 2013 to 90 days of inpatient addiction treatment after pleading no contest to lying to police and reckless driving. In June 2013 she left the Betty Ford Center after a little over a month into this sixth stint in rehab and completed it at Cliffside Malibu.

Amanda Bynes

Credit: Splash News

The former child actress suffered a string of issues between 2012 and 2013. According to People.com, Byne faced DUI and hit-and-run charges in 2012. In 2013, suffering from unspecified mental-health issues, Bynes was placed under psychiatric hold in California in July 2013 after setting a small fire and behaving bizarrely in a stranger's driveway. Her mother was granted conservatorship soon afterward, and her lawyer in a DUI case said in September 2013 that she was unfit to stand trial. Bynes went on to complete inpatient treatment at a rehab facility.

Alec Baldwin

Credit: JDH Images / Splash News

In August 2013, the Amityville-born, Massapequa-raised Alec Baldwin scuffled with a photographer in Greenwich Village, pinning the man's arms back and pushing him against a car. Later that year, in November, after three more separate, heated paparazzi confrontations in just two days, Baldwin publicly apologized for using an anti-gay slur during one outburst. MSNBC suspended his recently begun talk show for two weeks, followed by the actor and the network announcing "a mutual parting."

Miley Cyrus

Credit: AP

The singer and former Disney Channel star had a string of bad behavior. In August 2013, she stripped to a skin-tone bra and panties, twerking against singer Robin Thicke and toyed with a large foam finger onstage at the MTV Video Music Awards -- and seemingly became the most talked-about person on the planet. After then appearing nude in the music video for "Wrecking Ball," an homage to Sinead O'Connor's "Nothing Compares 2 U" video, she made fun of O'Connor's acknowledged mental-health issues on Twitter, comparing O'Connor to the recently-hospitalized Amanda Bynes. Later that year, in November, in Amsterdam, at MTV's European Music Awards, she fired up an apparent marijuana joint on live TV.

Chris Brown

Credit: AP

In 2013 August, singer Chris Brown had another 1,000 hours tacked to his community service for a 2009 assault conviction, with the judge saying Brown fudged documentation on the 1,400 hours he was supposed to have completed. Two months later, Brown and another man were arrested in Washington, D.C., after a 4:30 a.m. fight with a third. The singer quickly entered a rehab facility to address anger issues. He was subsequently kicked out of rehab, his probation officer says, on Nov. 20, 2013, after smashing his mother's car window during a family session.

Justin Bieber

Credit: AP

Singer Justin Bieber had taken part in a string of bad behavior since 2013. He mooned fans on a quickly deleted Instagram photo on Jan. 19, 2013. In March, 2013, a video caught him nearly getting into a fight with a London photographer, screaming at the man, "I'll [expletive] beat the [expletive] out of you!" That same month, Bieber was thrown out of a Vienna nightclub after his bodyguards allegedly smashed patrons' cameras and cellphones and groped female fans. Soon after, The L.A. County Sheriff's Department investigated a battery complaint lodged against him by a neighbor who objected to Bieber's reckless driving on residential streets and reportedly was spit on by the teen. In July 2013, Bieber publicly apologized to Bill Clinton after he's caught on video cursing out a photo of the former president. According to CNN.com, Bieber was later photographed wandering around on Boston barefoot on May 9, 2016.

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