J. Holiday + Jon B.

J. Holiday scored his first hit with 2007's "Bed," which sported the memorable refrain "I'mma put you to bed." (Let's just say he wasn't talking about tucking his kid in at night.) Here, the D.C. R&B crooner turns up in support of his latest, Guilty Conscience, which features characteristically filthy slow jams such as "After We Fuck." Veteran soul smoothie Jon B., the man behind silky 1995 fave "Someone to Love," warms up the crowd.