TV LL Cool J Gears Up for 'Lip Sync Battle's' Epic Star-Studded Premiere By Raphael Chestang 5:18 PM PDT, April 1, 2015 This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. 52:02LL Cool J Gears Up For 'Lip Sync Battle's' Epic Star-Studded Pre…01:00Michael J. Fox and Christopher Lloyd Team Up Again for New ‘Back…08:23Tamera Mowry Says Sister Tia is 'Happiest She's Ever Been' After…08:20Jay Leno's Physician Describes Star's Burn Injuries as 'Concerni…02:08Candace Cameron Bure Defends Herself Against 'Traditional Marria…01:55Freddie Prinze Jr. Shares the Secret to Sarah Michelle Gellar Ma…01:38Jenna Ortega Shares Why She Rocked a Veil at ‘Wednesday’ Premier…02:23'80 for Brady' Official Trailer02:39Paris Hilton Updates Fans on Pregnancy Journey After Mom Kathy C…03:00Kelly Rowland Weighs in on GRAMMYs and Who She Thinks Deserves a…01:20Ryan Reynolds on How His Kids Feel to Be Expecting a New Sibling…01:54Pete Davidson and Emily Ratajkowski Show PDA for Comedian’s 29th…01:39How Patrick Dempsey Really Feels About Singing in 'Disenchanted'…01:17'Grey's Anatomy's Debbie Allen Shares the Proudest Moment of Her…05:47Jessica Henwick on Charlie Cox’s Call for Her MCU Return and Wor…02:24Harry Styles and Olivia Wilde Split After Nearly 2 Years of Dati…02:02Nicki Aycox, 'Supernatural' Actress, Dead at 4701:00Jay Leno Seen for First Time Since Suffering 3rd-Degree Burns03:18‘Criminal Minds: Evolution’: Zach Gilford Dishes on Working With… LL Cool J hosts Spike TV's series Lip Sync Battle, premiering April 2, and the NCIS: Los Angeles star stopped by ET to dish on what viewers can expect. NEWS: Watch Dwayne 'The Rock' Johnson's Amazing Lip Sync to Taylor Swift's 'Shake It Off' "It's really simple," LL said, explaining the concept of the show. "It's two celebrities and the audience decides who lip syncs the best."Inspired by Jimmy Fallon's late-night sketches, contestants have included Justin Bieber, Jennifer Lopez, Mike Tyson, Chrissy Teigen, John Legend, Common, Anna Kendrick and Dwayne "The Rock" Johnson. NEWS: Top 5 Favorite Jimmy Fallon Lip Sync Battles"It's so much fun. So many A-list, great acts came out and just had a ball," LL gushed.While most celebrities were game for the show's shenanigans, LL said a few were hesitant about doing the show."Nobody wants to go on there and look ridiculous," LL said. "But it was a lot of fun." NEWS: Watch Will Ferrell Flawlessly Lip Syncs Beyonce's 'Drunk In Love'Watch the video for a clip of various contestants lip-syncing to one of LL's hits, 1990's "Mama Said Knock You Out."