Just over a year after Cardi B and Bruno Mars teamed up on Mars' "Finesse" remix in Jan. 2018, the duo reunited for a Valentine's Day surprise, the steamy new track "Please Me."

The track is both artists' first release of 2019, with its classic R&B more similar to Mars' brand of smooth love songs than Cardi's bawdier anthems.

Both stars get sensual in the track's lyrics, with Cardi namedropping '90s R&B kings Jodeci.

After previously deactivating her Instagram Monday after facing post-Grammys backlash from trolls who claimed she didn't deserve her win for best rap album, Cardi returned to the platform Wednesday to tease the new track.

"PLEASE ME OUT NOW !!!!! CARDI B XBRUNO MARS ....HAPPY VALENTINES DAY WE GETTING REAL (expletive) FREE TONIGHT," she captioned one Valentine's Day video, before sharing hers and Mars' album art in another post, as well as a snap of her posing in a bathtub.

"So I’m back from retirement to announce I have a brand new song coming out Friday at midnight with @brunomars," Cardi previously captioned a picture of the "Please Me" cover art shared Wednesday, along with the hashtag "two Grammy winning artist(s)" and a trophy emoji.

Cardi's Instagram hiatus came after she shared messages from Chance The Rapper, J. Cole and other artists congratulating her on her Grammys win. Her award, which she took home for her 2018 "Invasion of Privacy" release, made her the first solo female rapper to win best rap album.