Jennifer Lopez’s “All I Have” Las Vegas show was packed with A-list celebs like Justin Bieber, Scooter Braun, Ryan Seacrest, Rebel Wilson, T.I., Rosie Huntington-Whiteley, Kelly Osbourne, Hoda Kotb, Derek Hough, Nicole Scherzinger and many, many more. The show was huuuuuuuge.. Check it out! Additional Links: TMZ US Weekly