Justin Timberlake and Friends Concert -- FIRST PICS

Justin Timberlake performs at his own “Justin Timberlake And Friends Concert” at Planet Hollywood on Friday in Las Vegas. (Girlfriend Jessica Biel watched from the sidelines and was also spotted at the after-party at Prive.)

The event benefited Shriners Hospitals for Children, which is dedicated to improving the lives of children by providing specialty pediatric care to children with orthopaedic conditions, burns, spinal cord injuries and cleft lip and palate. Kids receive all care in a family-centered environment at no charge – regardless of financial need.

For more info on how you can help Justin‘s cause, visit ShrinersHQ.com.

10+ pictures inside of the Justin Timberlake and Friends Concert…