Beyonce gave a group of young fans one hell of a surprise when she popped up and started dancing along to her new song “Countdown” at a Boys & Girls Club event at a Harlem Target store yesterday.

The superstar was on hand to help Target celebrate the 1-year anniversary of that particular store, as well as the release of her new album “4.”

Peep the video footage (and check out the pics) below:

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