Justin Bieber is standing behind his girl. Carly Rae Jepsen made her first major U.S. talk-show appearance on Friday's "Ellen DeGeneres Show," and she brought quite the surprise with her: Bieber himself and an exclusive preview of his song "Boyfriend."

Ellen began the segment attempting to read an intro for Jepsen, the 26-year-old Canadian singer who won the hearts of pop enthusiasts with her catchy, upbeat single "Call Me Maybe" but was interrupted by an eruption of screaming girls who caught sight of a black-and-yellow-clad Justin Bieber. The young heartthrob took the opportunity to introduce Jepsen, whom he recently signed to his Schoolboy Records label. He had been making a public Twitter bid to Ellen to have his new artist appear on her daytime show.

Jepsen, who calls her style "folky pop," took to the stage in a long, bohemian dress. Jepsen sang her hit song, currently at #8 on the iTunes singles chart alongside the Wanted and Katy Perry. Her performance was applauded by Ellen and topped off with a giant hug from her new mentor.

During an interview with Ellen, Bieber recalled hearing Jepsen's track on the radio in Canada and jumping on YouTube to find out more about the "talented" singer. After learning of her local success, Bieber realized she was unsigned in the U.S. and immediately decided to change that.

Life has certainly taken a 180-degree turn for Jepsen in the last two months. "I had never branched outside of Canada, and I didn't know how to do that, and then one miraculous day, Justin called," Jepsen told Ellen. "It seemed too good to be true." There is also talk of a possible collaboration with Bieber.

Bieber is taking his new A&R role very seriously, promoting Jepsen in any way possible, including dropping a video spoof of "Call Me Maybe" featuring famous friends Selena Gomez, Ashley Tisdale and Carlos Pena Jr. of Big Time Rush.

Copyright : MTV.com