JUST ADDED: 5 Seconds of Summer will be rocking the stage at this year's iHeartRadio Music Festival Village in Las Vegas! The band sat down with Ryan Seacrest to break the news. Click here to buy your tickets now, before they sell out!
We all know Ellen DeGeneres is funny, but who knew Bruno Mars is a prankster too!
Bruno visited "Ellen" this week and he and the comedian/host teamed up to prank an unsuspecting nurse.
The nurse is there to examine Bruno's throat, but Ellen was in his ear the whole time telling him what to say! Needless to say, the whole thing is hilarious!
Check the prank out below!