By Breaking Celebrity News Staff

Last week, Nick Cannon gave away the family phone number on his radio show, and one fast-dialing fan got to speak to his mega-star wife, Mariah Carey.

Who knew he'd be starting a trend?

Singer Bruno Mars followed in his footsteps, during an appearance on Cannon's New York-based radio show Wednesday.

"My ridiculousness is contagious!" Cannon tweeted. "@BRUNOMARS just gave his cell phone # out live on the air @923nowfm."