Hip-hop producer Swizz Beatz thrilled fans at his New York concert last week (ends14Dec12) by inviting his superstar wife Alicia Keys to join him onstage.

The beatmaker/rapper was performing his latest single Everyday Birthday at Webster Hall on Thursday (13Dec12) when Keys made an unexpected appearance, sending the crowd into a frenzy.

Beatz played along with the surprise, saying, "You just gonna pop up on my show like that?", to which the Empire State of Mind hitmaker replied, "I just figured I'd come say hi."

The couple then played Keys' new song New Day, which was produced by her spouse, but the singer wasn't the only special guest Beatz had in store for devotees - he also joined forces with rap mogul Sean 'Diddy' Combs to perform Same Damn Time, while Busta Rhymes treated the audience to his classic Put Your Hands Where My Eyes Could See, and DJ Khaled rocked the crowd with the catchy All I Do Is Win.