Demi Lovato, Lea Michele & More Added to TEEN CHOICE 2014 Line-Up

Platinum-selling singer, songwriter, actress and TEEN CHOICE Award winner Demi Lovato will perform "Really Don't Care" with Cher Lloyd and Platinum-selling artist Rita Ora will perform "I Will Never Let You Down" on TEEN CHOICE 2014, airing live Sunday, Aug. 10 (8:00-10:00 PM ET live/PT tape-delayed) on FOX.

Fans ages 13-19 can vote once each day per category for their favorite TEEN CHOICE 2014 nominees at www.teenchoiceawards.com. Voting ends at 11:59 PM PT on Saturday, Aug. 9.

TEEN CHOICE 2014 celebrates the hottest teen icons in television, music, film, sports, fashion, comedy and the web. Hilary Duff, Megan Fox, Fifth Harmony, Kevin Hart, Colton Haynes, Josh Hutcherson, Sarah Hyland, Kendall Jenner, Kim Kardashian, Lea Michele, The Band Perry and Nat Wolff join previously announced stars scheduled to appear Keegan Allen, Jake T. Austin, Tyler Blackburn, Lucy Hale, Big Show, Jamie Blackley, Ian Harding, Kellan Lutz, MKTO, Chloë Grace Moretz, Cody Simpson, Hailee Steinfeld, Gregg Sulkin, Bella Thorne and Zendaya. The special also will feature previously announced performances by Jason Derulo, MAGIC! and Rixton. Additional presenters, performers and nominees to be announced soon.

Demi Lovato has recorded numerous multi-Platinum and Top 10 chart singles, spanning four studio albums. Hot on the heels of her new hit single, "Really Don't Care," Lovato will embark on a world tour this September in support of her latest album, "Demi." Her social media reach is massive, with 23.5 million followers on Twitter, a Facebook page "liked" more than 35 million times, an astounding billion music video views on VEVO and more than 200 million YouTube views for her cover of "Let It Go," the Academy Award-winning song from "Frozen." In addition to her musical accomplishments, Lovato has become a fixture on television, having had a recurring role on the fifth season on FOX's GLEE, as well as her role as judge and mentor on Seasons Two and Three of FOX's "The X Factor." The multi-talented star also wrote the inspirational book "Staying Strong: 365 Days A Year," which debuted at No. 1 on the New York Times Best Sellers list. She is releasing a follow-up journal this fall. Lovato recently signed on with Skechers for a global footwear marketing campaign which will be featured across multiple platforms, including television, print, online, outdoor and point of purchase.

2014 is primed to be the year of Rita Ora. She was unstoppable and dominated the U.K. charts with the release of her No. 1 certified Platinum debut album, "Ora." The Roc Nation/Columbia artist is now readying to release her newest full-length album, propelled by the hit single, "I Will Never Let You Down." Ora had a phenomenal rise in 2012, which continued in 2013. She was the only artist to have three No. 1 singles in a row and proved herself as a force to be reckoned with on the stage, including her European tour with rock giants Coldplay, supporting Drake and playing every major U.K. music festival, as well as her headlining "Radioactive" tour across the U.K.

A full list of categories and nominees is available at www.teenchoiceawards.com. TEEN CHOICE 2014 is executive-produced by Bob Bain ("Nickelodeon Kids' Choice Awards") and Michael Burg. Paul Flattery and Kelly Brock serve as producers and Greg Sills serves as supervising producer. "Like" TEEN CHOICE 2014 on Facebook at facebook.com/teenchoiceawards. Follow TEEN CHOICE 2014 on Twitter at @TeenChoiceGirl and join the conversation using #TeenChoice.