Usher thrills fans with karaoke session

Published on Friday, August 10 2012

Usher wowed Los Angeles karaoke revellers in the early hours of Tuesday by stepping onstage at a Sunset Strip bar and belting out a Jackson 5 classic.

The R&B star offered up a pitch-perfect rendition of the Jackson 5's I'll Be There at Rock & Reilly's.

Fans caught the magical moment on camera phones and the footage has now hit the Internet.