5 Seconds of Summer Rock Out to 'She's Kinda Hot' at Teen Choice Awards 2015 - Watch Their Performance!

Calum Hood of 5 Seconds of Summer sings his heart out during the 2015 Teen Choice Awards held at the Galen Center on Sunday (August 16) in Los Angeles.

The 19-year-old Aussie singer and his bandmates – Luke Hemmings, Michael Clifford, and Ashton Irwin – performed their hit new single “She’s Kinda Hot” for the crowd. Watch below!

“Had a great time playing SKH at the Teen Choice Awards,” Calum tweeted.

Ashton wrote, “HELL YEAH THAT WAS FUN! Thanks for havin us 😍”

10+ pictures inside of 5 Seconds of Summer performing at the Teen Choice Awards…