Willow Smith: Justin Bieber Concert Appearance!

Kid superstar Willow Smith joined teen sensation Justin Bieber on stage during his sold-out concert on Monday night (October 25) at Staples Center in Los Angeles.

Girl’s got so much swagger. Watch below!!!

Justin tweeted after the concert, “LA TONIGHT WAS CRAZY!!!! USHER, JADEN [SMITH], SEAN [KINGSTON], and even my lil sis WILLOW SMITH!!!! WE SHUT LA DOWN!!!!!!!! LOVE YA’LL.”

Willow‘s “Whip My Hair” video has only been out for a week and it’s already racked up at 8 million views. Amazing!!!

The 9-year-old daughter of Will Smith and Jada Pinkett Smith will participate in a LIVE chat tonight at 7:30pm ET on UStream. Tune in!

FYI: Pictured here is Justin over the weekend in a plaid G-Star shirt at Variety‘s 4th Annual Power of Youth event.