On his new album, ‘Duets II,’ legendary crooner Tony Bennett works with scores of talented artists — but perhaps none as wildly popular as Mother Monster herself, Lady Gaga.

Teaming up for a jazzy rendition of ‘The Lady Is a Tramp,’ Gaga gets the rare opportunity to show that she’s no studio creation — the chick can actually sing.

On the video for the track, Gaga dresses appropriately for the occasion in a long black lace gown, with minimal makeup and none of her normal attention-grabbing weirdness.

Well, she does have seafoam-green tresses, but they’re styled in a classic Marilyn Monroe bob. And really, for Lady Gaga, that’s her version of understated soccer-mom hair.

Bennett and the ‘Born This Way’ icon sound divine, and seem to be having a ball together. Check out their duet on a jazz standard below.

Watch:

(via Tony Bennett’s Vevo)