Hailee Steinfeld & Machine Gun Kelly Are At Their Best For Wango Tango!

Hailee Steinfeld brought the house down at 102.7 KIIS FM’s Wango Tango on Saturday (May 3) at the StubHub Center in Carson, Calif.

The 20-year-old singer and actress performed some of her best songs for the crowd, including her latest single, “Most Girls.” Check out a clip of her performing that below!

Hailee also joined Machine Gun Kelly on stage during his set for a performance of their duet “At My Best.”

During Hailee‘s set, she experienced some technical difficulties at the start of her first song, and joked about the mishap on her Twitter account afterward.

“Thanks for bearing with me tonight LA. Next time I’m pulling an Adele,” she wrote. “When the sound cuts out right at the top of your set and your just like ‘IT AINT MY FAULT’ #WangoTango,” she added along with a photo.

Also hitting the stage that night was Zedd, along with Alessia Cara, who joined him on stage for their song “Stay.”