Reality-TV star Andi Dorfman; professional baseball player Clayton Kershaw; Train performs.
Actor Justin Theroux; actress Angie Harmon; 5 Seconds of Summer performs.
Chef Gordon Ramsay, Bobcat Goldthwait, Musical guest Common
John Stamos; Todd Glass; OK Go performs.
Actors Chris Pratt, Zoe Saldana, Dave Bautista, Vin Diesel and Bradley Cooper, Music from Classixx
Actress Jessica Alba; actor Ben Falcone; Sia performs.
Actress Susan Sarandon; actor Ramon Rodriguez; Robin Thicke performs.
Actor Dane Cook; actor Mark Duplass; Trey Songz performs.