Justin Bieber Crashes SXSW Showcase - Video

Justin Bieber decided to crash the party at this year's South by Southwest festival in Austin, Texas on Sunday (March 9).

Country pop newcomers Dan + Shay were on stage performing as part of the Scooter Braun Productions Sunday Funday showcase, when Justin (Scooter is his manager), jumped up and started singing/rapping his hit 'Boyfriend', at which point the crowd went insane. Later on he was given his own spot at the show, performing an acoustic rendition of another hit, 'As Long As You Love Me'.

Trying to keep fans off the stage, Dan + Shay briefly had to become makeshift bodyguards, such was the crowd reaction. Shay Mooney later tweeted, "This was great…I was having some problems keeping girls off the stage. Madness. Haha."

You can check out the video below.

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