Transcript for Young Fan Challenges NBA Usher to Dance-Off
Now to the pro basketball game where the real action was in the stands. This is great story. People are going wild this morning after a spontaneous dance-off between a famous usher and a very young gung-ho fan. It's causing an internet sensation. Abc's linzie janis has the story of these dueling dancers. ♪ Reporter: For 20 seconds, 11-year-old's dance moves had 20,000 fans at the detroit pistons fans going wild. Then, the cam moved to the pistons famous dancing usher, 46 yeermd. Then back to alexander. Sales then challenges the young mover to a dance-off. More than 2 million hits on youtube since tuesday night's game and alexander is a sensation. Doing these moves and then they were came back to me and i was like, come on. He had to get that dance cam to be on me throughout the whole entire game. He was like, mom, you'll never believe this. Reporter: He said that it's if first time that he's ever challenged a fan. This is my house. I don't want to brag but I'm good. Then I do the wave. I bring my a game. But at a pistons game a rematch. This time, with a little help from the detroit pistons dancers. I think I won. He's so good. But overall he's a young man, talented, he got so much going for himself. So, he's the winner. What he don't know is that I'm a big fan of his. He just don't know that. Reporter: For "good morning america," linzie janis abc news. Antoine he wants to be either a doctor or lawyer when he grows up. He's talking about a being mortician. Or lawyer or doctor. A dancing mortician. I loved that not many my house. So many quotables in that story. Speaking of a game, ginger
This transcript has been automatically generated and may not be 100% accurate.