Britney Spears opened up her 'Piece Of Me' Vegas residency to a star studded audience, and you can watch her absolutely own the stage in the videos below.

The audience was packed with stars, but nobody seemed to be more into Brit's performance that Selena Gomez.  She and Katy Perry were side by side at the show and Selena was definitely turned up as she got caught on Instagram dancing.  Even Rihanna took note commenting on the video, saying "Rih!!!!! Omg !!! @selenagomez !!"

With a set list that included old favorites as well as new tracks like 'Perfume,' Britney was definitely doing the show for her fans.  If you aren't able to make any of the performances, you can still check out some of the action in the videos below.

Watch Britney Spears Perform 'Me Against the Music'

Watch Britney Spears Perform 'Work Bitch'

Watch Britney Spears Perform 'Circus'

Watch Britney Spears Perform 'I Wanna Go'

Watch Britney Spears Perform 'Baby One More Time' + 'Oops ... I Did It Again'

Watch Britney Spears Perform 'Gimme More' + 'Break the Ice'

Watch Britney Spears Perform 'Toxic'

Watch Britney Spears Perform 'Boys' + 'Perfume'

Watch Britney Spears Perform 'Freakshow'

Watch Britney Spears Perform 'Do Somethin''

Watch Britney Spears Perform 'Drive Me Crazy'