Inside Justin Bieber's Surprise SXSW 2014 Set

UPDATE: Watch the full report on Justin Bieber's surprise Austin mini-show above.

SXSW is getting bigger every year, but no one expected the most famous heartthrob on earth—Justin Bieber—to perform in Austin during SXSW 2014. 

So when Bieber hit the stage at Banger's Sausage House and Beer Garden on Sunday night, it was a big shock. Especially to the guy Fuse News chatted up following the show, a man who found himself caught up in Bieber fever by accident.

"It was a total surprise to me to be in a teenybopper concert and a total surprise to see Justin Bieber," the eyewitness tells Fuse News. "But he's one of the biggest people right now. There was lots of screaming, lots of cell phones. "

Speaking of cell phones, he graciously shows us some up-close footage he caught of Bieber singing "As Long As You Love Me." Peep that in the video above and go deeper inside Bieber's SXSW set tonight on Fuse News at 7:30/6:30c! Use our Channel Finder to locate Fuse in your area.