For his recent appearance on Ellen, Bruno Mars agreed to pull a prank on an unsuspecting nurse. The gimmick is basically this: Mars repeats exactly what Ellen tells him through his earpiece.

Mars tells and asks Deborah the nurse a number of ridiculous things, like:

"I haven't swallowed since the Super Bowl." "Why do Pringles come in a tennis can?" "How many throats have you looked at?" "It also hurts when I go [makes chicken noise]."

And that's before he starts to cry. All in all, Deborah the nurse is a good sport about it. Plus, she got to be on Ellen.

[h/t Viral Viral Videos]