The 41-year-old In da Club rapper on Saturday was in full costume for a Teen Titans-themed birthday party he and ex Daphne Joy threw for their son Sire Jackson, aged four years.
50 Cent donned a mask with a blue and grey suit for Cyborg, whose identity of Victor Stone was changed forever after an accident that rendered him a man-machine hybrid.
The rap legend, whose real name is Curtis James Jackson III, posed in a shot, writing: 'This is what happens when a 4-year-old picks his own party. LMAO,' with an accompanying icon of an emoji hysterical with tears of laughter.
The proud papa continued: 'I gotta do it, anything for my baby,' adding the hashtag #FRIGO, a men's underwear brand he endorses.
On the day, the tough-as-nails music-maker definitely showed his mushy, paternal side with the celebration. He wrote, 'Lol, the kid said he wants a cyborg. I said ok, then he said I want daddy to be cyborg. what !!! Ok it's ya birthday I'm a Cyborg.'
