Star Spotting: Justin Bieber Brings Usher, Miley Cyrus And Boyz II Men To His Madison Square Garden Party

(Credit: Kevin Mazur/WireImage)

After calling in sick to his gig at the New York State Fair, you knew Justin Bieber was going to have to bring it for his sellout show at the Big Apple's Madison Square Garden. And man, did he bring it.

After opener Sean Kingston warmed the stage up, Bieber arrived, in his usual stage attire of all white, with a hoodie. He used his MSG show as a 3-D film set, shooting his upcoming concert film and all those cameras brought out more than a few stars.

Bieber was joined onstage by R&B legends Boyz II Men, who, as seen in the above photo, helped Bieber sing "U Smile." Other guests included Miley Cyrus, who sang "Overboard" and Usher who helped out on "Somebody To Love."

Justin Bieber's My World Tour heads north (after a quick jaunt to Chicago to tape Oprah). Check out dates here.