The 41-year-old musician took to Instagram to share photos from his son's fourth birthday bash.
"Lol the kid said he want a cyborg I said ok, then he said I want daddy to be cyborg. What !!!. Ok it ya birthday I'm a Cyborg," 50 Cent wrote next to a photo of himself and Sire.
Sire's mother Daphne Joy also joined in on the fun by dressing up as the popular Cartoon Network show's character Starfire, in an all-purple getup and long, hot-pink wig.
"I think the best thing about being a mom and overall a parent, is getting to relive all those fun kid moments!" she wrote next to an Instagram collage depicting hero-themed treats from the party.
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