Joan Jett Performs in Utah; Invites Dakota Fanning and Kristen Stewart Onstage

On Saturday night in Park City, Utah, the music was rocking and the crowd was having a great time, as Joan Jett & the Blackhearts hit the stage at the Harry O’s Concert Series. Jett was in town to lend her support to the movie, The Runaways, the biopic about her ‘70s band, the Runaways.

The singer performed on stage in a one-piece sequined leotard and sneakers. However, her fashion wasn’t the thing that got the crowd pumped. Rather, it was her special guests, Kristen Stewart and Dakota Fanning, who star in the movie, which is to premiere at the Sundance Film Festival.

After thanking the film's director, Floria Sigismondi, and other folks who worked on the film, Jett gave a shout-out to Stewart and Fanning who'd come up onstage, and thanked them in front of the audience.

Stewart, who was dressed in her typical attire of ripped jeans and a hoodie, and Fanning, in a dark outfit and heels, waved and smiled for the crowd, who in return screamed and clapped for them. The two soon went backstage, where they finished watching the show out of the spotlight.

The Runaways premieres Sunday at the Sundance Film Festival.