Taylor Swift Lights Up and Shuts Down Hollywood Boulevard for 'Jimmy Kimmel'

Taylor Swift Jimmy Kimmel - H 2014

The pop star stopped traffic for a late-night TV concert

Nearly 15,000 screaming fans lined Hollywood Boulevard on Thursday night to see Taylor Swift light up Jimmy Kimmel Live!'s outdoor concert stage. The concert served as a kickoff to a promotional tour for her new album, 1989, and Swift shared a taste of what some are calling a more mature sound for the pop superstar. 

Before performing her smash hit "Shake It Off" and the newly released "Out of the Woods," Swift sat down with Jimmy Kimmel to reminisce about the 24-year-old's first visit to the ABC late-night show, long before she had the star power to stop traffic at the peak of Los Angeles rush hour. 

See more 10 Global Pop Icons: Exclusive Portraits of Lorde, Ellie Goulding, Phoenix

"Taylor came to our show with her mom and her guitar, and somehow she got a hold of the guy who books the bands here, Scott Igoe, and she asked if she could play a song for him. And he said, 'No, you can't be in the greenroom, we serve alcohol here. You're too young. You have to go.' So he threw her out," Kimmel joked. "He threw Taylor Swift out of our building.' " 

Swift made nice with the music booker on air, though, saying: "All's well that ends well because I think of it like this: I think you probably would have gotten in more trouble with Jimmy had he wandered out and been like, 'Why is there this random 14-year-old tiny child sitting here with a guitar case? What's happening here?' " 

Now about to release her fifth album on Oct. 27, Swift says letting the world actually listen to the 13-song compilation makes her nervous. 

"I'm more confident about this album than I've been about any of the other ones, which is a really nice feeling," Swift said. "But it's almost like you're releasing this thing into the world that you spent two years with, and it's just been mine for two years and now it's everybody else's. You know, sending it off to college."

See more 10 Taylor Swift Red-Carpet Hits

After appearing on Kimmel, Swift will take over Good Morning America in New York City for an interview with Robin Roberts on Monday, followed by appearances on CBS' Late Show With David Letterman on Tuesday and The View on Wednesday. Swift will finish the whirlwind tour with a final performance on Thursday, Oct. 30, for GMA

Billboard recently named the vocalist the 2014 Woman of the Year, and after her electrifying performance on Jimmy Kimmel Live! it's clear 1989 might be Swift's biggest moment yet.