Taylor Swift’s audience at the Staples Center in Los Angeles was screaming at that top of their lungs — but that was before Justin Bieber popped up and joined her for a duet on his teen-angst bubblegum hit “Baby.” At that point, the crowd whipped itself into a shrieking throng of Beliebers. JB was just one of the many surprises Tay’s pulled out of her hat on her Speak Now 2011 Tour so far. Head below to watch the Bieb ham it up live with the BFF of his girlfriend Selena Gomez.
Bieber will always be sidekick to Taylor. http://bit.ly/n9PNDX