Beyonce helps celebrate the one-year anniversary of Target East Harlem on Thursday. (Stephen Lovekin/GETTY IMAGES)

(Watch the video here.)

A group of children from the Boys & Girls Club of Harlem got the surprise of a lifetime Thursday, as Beyonce dropped in on a dance lesson at a local Target.

As the very cute, unsuspecting kids danced to Beyonce’s “Countdown,” the music superstar herself appeared to cheers from the crowd. After a big group hug, the boys and girls lived the dream of every Beyonce fan and danced with her.

Of course, this isn’t the first time Beyonce surprised some kids in motion. She dropped by P.S. 161 Pedro Albizu Campos middle school in Harlem in May, where students were getting a workout to “Move Your Body.”

“She makes me dance, and she makes me feel like having a playdate with her,” Milan Perdomo, 5, after meeting the diva to CBS New York.

Watch Beyonce’s surprise below: