Last week, not many teens could say they've danced side-by-side with Beyonce. Now, thanks to the pop star's surprise visit to a Harlem middle school on Tuesday, a group of girls have a memory to last a lifetime.

A dance group at Harlem's PS 161 Pedro Albizu Campos Middle School was performing a routine to Beyonce's 'Move Your Body/Get Me Bodied' Monday afternoon. When singer herself joined the group mid-dance, the surprised girls squealed with delight, but didn't miss a beat.

According beverage company WAT-AHH, Beyonce's surprise visit is part of a partnership with WAH-TAHH and NAB Education Foundation for the 'Let's Move! Flash Workout' event dedicated to fighting childhood obesity.