See more from Britain's Got Talent at http://itv.com/talent
Simon spots a familiar face when this 20piece dance crew appear on stage.
The trailblazing troupe have the audience on their feet with their highoctane hip hop routine, even Alesha is impressed!
That'll be one golden buzzer and a guaranteed place in the semifinals, thank you very much!
SUBSCRIBE: http://bit.ly/BGTsub
Facebook: / bgt
Twitter: / bgt