Teen Choice Awards, airing Sunday, Aug. 7 from 8-10 p.m. on Fox.
A live webcast airing from 3:30-5 p.m. online, hosted by Jordan Morris andRobin Thede, will feature the red carpet with Affion Crockett of the upcoming In the Flow With Affion Crockett making a special appearance.
In addition, Robert Pattinson, Demi Lovato and Ellen DeGeneres have been added to the list of celebrities making appearances.
The list includes: Tyra Banks, Jason Bateman, Justin Bieber, Rachel Bilson, Rebecca Black, Rose Byrne, John Cena, Cat Deeley, Zooey Deschanel, Cameron Diaz, Tom Felton, Jesse Tyler Ferguson, Kat Graham, Ashley Greene, Lucy Hale, Ed Helms, Chris Hemsworth, Gillian Jacobs, Joe Jonas, Victoria Justice, Khloe Kardashian, Kim Kardashian, Kourtney Kardashian, Ashton Kutcher, Taylor Lautner, Christopher Mintz-Plasse, Tyler Posey, Maggie Q, Avril Lavigne, Katie Leclerc, Kellan Lutz, Vanessa Marano, Joel McHale, Mike “The Miz” Mizanin, Nikki Reed, Zoë Saldana, Taylor Swift, Paul Wesley, Shane West and Shaun White.
Source: The Hollywood Reporter.