Diddy, Dawn, and Kalenna aka Dirty Money debuted their Last Train to Paris single “Hello Good Morning” live for the first time on Wednesday’s “American Idol.” This week’s mentor, Usher, also performed the will.i.am-assisted “OMG” on the results show, and “Idol” champ Ruben Studdard returned to the stage.

Usher and will.i.am Perform “OMG”

Ruben Studdard Performs “Don’t Make ’Em Like U No More”

Videos via Mr. World Premiere