Beyonce’s ‘Party’ Track,….Leaks.

That’s the name of the tune from the singer’s upcoming album, 4, which leaked on Monday and features a few verses from reclusive Outkast rapper Andre 3000. The song was produced by Kanye West and Consequence, with ‘Ye helping to kick off the retro-’90s keyboard groove with the instantly quotable lines, “You a bad girl and your friend’s bad too/ You got the swag sauce, you drippin’ swagu.”

Over a slinky, slow-bouncing synthesizer and drum machine track reminiscent of a New Jack Swing seduction groove from Al B. Sure!, Beyoncé croons, “I may be young but I’m ready/ To give you all my love/ I told my girls you can get it/ Don’t slow it down, just let it go/ So in love.”

Unlike the at-points frantic “Run the World (Girls),” the new tune takes its time, lyrically and musically, with Beyoncé luxuriating over her vocals and singing about the beauty of nice and slow. “I’ll give it all away/ Just don’t tell nobody tomorrow/ So tonight I’ll do it every way/ Cause knockin’ till the morning light/ ‘Cause we like to party.”

Andre comes in around the 2:15 mark, his nasally, rapid-fire flow instantly recognizable amid a barrage of brain-twisting rhymes. “Spit this sh– for rillo, brain Brillo/ Kiddo say he looks up to me, this just makes me feel old/ Never thought that we could become someone else’s hero,” raps the ATL veteran about his now senior status in the game.

“Man, we were just in the food court, eating our gyro/ Yesterday, that’s the way, every single mornin’ I try to pray/ Grandmom ‘n them, they never forgot, and nothin’ else really mean nuttin’ to me.”

The slow jam runs out with Beyoncé reiterating the lines ” ‘Cause we like to party, hey, hey, hey, hey, hey” and then a reprise of West’s opening lines in praise of that elusive swagu sauce.