Gaga let fans know she was back to work with her pop righthand man by posting a photo to her Instagram showing her and RedOne, who's holding an acoustic guitar, sitting by the boards looking cozy.

This pairing should have Gaga fans well, going gaga. RedOne is the producer behind some of her biggest songs including "Just Dance" and "Poker Face" off her 2008 debut, The Fame, along with Born This Way tracks like "Judas."

RedOne was noticeably absent on her most recent album, 2013's ARTPOP, which last year Gaga said was not a "flop" that cost her label $25 million and caused layoffs in a letter slamming her ex-manager.