50 Cent can't let up on Young Buck.

Seemingly out of the blue, Fif reminded everyone that Buck had been linked to transgendered women by posting an old photo of 50, Buck, and Caitlyn Jenner.

Buck has acknowledged the link but has claimed he was catfished.

He clapped back at 50 for bringing it up again via IG Stories.

"Hey Cuuuurtis," he typed.  "Look bro ... Dam if ya miss me just say dat ... tell me happy birthday if you gone mention me!! PS. Don't flag this post this time."