In case you aren’t in the know, Friday was Jimmy’s 40th birthday. Naturally, The Tonight Show host had to celebrate on-air and his staff are apparently very good at keeping seriously sexy secrets to themselves. Seth Rogan and James Franco popped out of a cake without clothes on! And even though Seth acknowledges in the clip that he and a handcuff wielding Franco weren’t the real surprise, Jimmy still proclaimed that the moment made for “the best birthday” he’d ever had.