Some of the biggest names in music gathered in LA on Sunday for the iHeartRadio Music Awards. Taylor Swift [1] stunned on the red carpet before totally freaking out [2] with some of her famous friends and taking the stage to accept an award. Meanwhile, Jamie Foxx [3] stole the spotlight as the night's host, and Justin Timberlake [4] was all smiles throughout the show, giving the sweetest shout-out to Jessica Biel [5] when he accepted the 2015 iHeartRadio Innovator Award. Check out all the must-see snaps of stars mingling and hitting the stage, then take a look at all the celebrities on the iHeartRadio Music Awards red carpet [6]!

Jamie Foxx

Nick Jonas

Taylor Swift

Iggy Azalea and Jennifer Hudson

Hailee Steinfeld and Taylor Swift

Rihanna

Nick Jonas and Chris Brown

Taylor Swift

Jason Aldean and Brittany Kerr

Brantley Gilbert

Justin Timberlake and Snoop Dogg

Madonna and Taylor Swift

Gina Rodriguez

Jamie Foxx and Taylor Swift

Meghan Trainor

Jamie Foxx and Taraji P. Henson

Kelly Clarkson

Jason Derulo

Iggy Azalea

Nick Jonas

Jennifer Hudson and Iggy Azalea

Justin Timberlake and Taylor Swift

Jeremih

Florida Georgia Line

Justin Timberlake

5SOS

Anna Camp and Brittany Snow

Meghan Trainor and Taylor Swift

Chris Brown and Jamie Foxx

Left Shark and Ian Ziering

Taylor Swift