Teen sensation Justin Bieber surprised the audience at Taylor Swift's show. The 17-year-old pop singer joined Swift onstage for the first of four nights in LA as part of her Speak Now tour. Together, the two sang Bieber's hit song Baby, The Hollywood Reporter said.
After the show ended, Swift tweeted about the duet. "You think you've heard loud screaming in your life. Then Justin Bieber comes out and does a surprise song during your show. Woah. Unreal" she wrote on Twitter. Bieber also tweeted to Swift saying, "We should do that more often. :) great show! muchlove."
After the duet, several fans called for Bieber and Swift to work together again. "Taylor Swift and Justin Bieber should do a song together," a fan wrote on Twitter.