Sean Kingston at Stir Lounge

Sean Kingston!

While many people hit the beach this Labor Day weekend, D.C.'s finest decided to stay in town to party with Sean Kingston at Stir Lounge on Saturday night. Although the "Beautiful Girls" singer didn't arrive until later in the evening, the party was officially bumpin' by 10 p.m., with the dance floors packed on both levels of the Penn Quarter club. Upon the pop stars arrival, the DJ started playing his hit tunes like "Fire Burning" and "Take You There," keeping the party going until 3 a.m.