When Tori Kelly hopped on stage to do a show at SXSW on March 9, she had no idea Justin Bieber would be performing with her.
Kelly joined HuffPost Live from Austin to chat about the SXSW scene, and during the interview she gave the scoop on Bieber's surprise performance for an intimate audience at Banger's Sausage House & Beer Garden. Kelly said she planned a group jam session but had no idea there would be such a special guest star.
"Literally like five minutes before I was about to go on, I was like, 'We should all do a song together,'" Kelly said. "So I was talking with the guys from Rixton and Cody Simpson and Dan + Shay, and I was like, 'Let's just all jam, we don't need to rehearse it.'"
After about 20 minutes, Kelly was ready to wrap things up, but she got word that she had to keep going.
"They're like, 'No, you got to keep playing, you got to keep playing, Justin's about to come up,'" she said.
Finally, Bieber made his appearance to deafening excitment from the audience: "The crowd went crazy. They went insane."
See the full HuffPost Live interview with Tori Kelly from SXSW in the video below.