A 12-year-old country music singer-songwriter whose videos have gone viral will be performing on Long Island on Aug. 12 and 13. From 7 to 7:30 p.m. Friday, Aug. 12, Tegan Marie of suburban Flint, Michigan, will play on the Adventureland stage, 2245 Broadhollow Rd., Farmingdale; at 5 p.m. Saturday, Aug. 13, she’ll opening for Hunter Hayes at the Pennysaver Amphitheater, 55 S. Bicycle Path, Farmingville.

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Tegan Marie has had millions of views of her videos online. She is out with a new single called “Lucky Me.” Her 2015 holiday single “A Christmas Tree,” was featured on SiriusXM, Radio Disney, Pandora and more.

The Adventureland performance is free; for the concert in Farmingville, tickets are $35 at ticketmaster.com