Beyonce and Jay-Z Party in NYC

They’re always up for a good shindig, and last night (March 17) Beyonce Knowles and Jay-Z were spotted helping Robin Thicke celebrate his birthday.

The “Crazy in Love” songstress and her “99 Problems” hubby looked to be having a smashing good time at 1Oak in New York City as they partied into the wee hours.

Earlier in the evening, Beyonce was in Midtown Manhattan to lend her voice to Alicia Keys’ Madison Square Garden concert.

Knowles joined the “Fallin” singer on stage for a spirited duet, much to the delight of the thousands of fans in the audience.

Enjoy the pictures of Beyonce Knowles with Jay-Z at Robin Thicke's party and performing with ALicia Keys earlier in the night (March 17)