By Sierra Marquina
The iHeartRadio Music Festival went down over the weekend in Las Vegas at the MGM Grand Garden Arena with performances from everyone from Miley Cyrus and Katy Perry, to Justin Timberlake.
And while those artists were performing on stage, another performance was going on backstage—that of family and friends.
A source tells On Air with Ryan Seacrest backstage was a bit of a family affair with artists bringing their closest friends with them.
Britney Spears‘ two sons Sean and Jayden kept the “Work B**tch” singer laughing backstage while Kate Hudson had a blast cheering on fiancé and Muse singer Matthew Bellamy at the MGM Grand Garden Arena.
And Justin Timberlake, who closed the show, wasn’t without his better half. Wife Jessica Biel was seen having the time of her life along with the other 16,000 attendees.
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