The 2015 Teen Choice Awards brought plenty of excitement to LA on Sunday night. But there was more than just the glamorous red carpet [1] and the excitement you saw on TV [2]. Stars mingled in the audience, cracked each other up backstage, and even brought a few new faces to the press room. Scroll through to see the can't-miss behind-the-scenes snaps from the big event, and then get a different perspective with a look at all the best Instagram posts [3] from the night.

Ellen DeGeneres and Portia de Rossi

John Stamos and Josh Peck

Ellen DeGeneres With a Fan

Maia Mitchell and Sarah Hyland

Bella Thorne and Gregg Sulkin

Bella Thorne With a Fan

Scott Eastwood, Chloë Grace Moretz, and Rita Ora

Britney Spears and Her Niece Lexie

Wiz Khalifa and Rita Ora

Emma Roberts, Lea Michele, Keke Palmer, and Josh Hutcherson

Britney Spears With Her Sons, Sean Preston and Jayden James, and Niece Lexie

Wiz Khalifa and John Stamos

Jordana Brewster, Michelle Rodriguez, Vin Diesel, and Ludacris