Forget Dancing with the Stars -- Justin Bieber and Willow Smith are showing fans what an epic dance-off really looks like.

Already pals and "Never Say Never" duet partners with Will and Jada's son Jayden Smith, the Biebs is now counting his little sis Willow as one of his collaborators, bringing the "Whip My Hair" star on stage during his tour stop in Los Angeles this week for a very special dance-off.

To the delight of squealing fans in the Staples Center, Biebs and Willow embarked on a friendly dance battle to rap group Cali Swag District's "Teach Me How to Dougie." And might we say, both Biebs and Willow have the Dougie dance craze down pat.

source: celebuzz.com

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