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(TMZ) - Aaron Carter is sporting a shiner he claims he got from 4 grown men who were pissed he's performing on "New Kids on the Block" turf - aka Boston, reports TMZ.

Aaron, who posted some gnarly selfies after the fight, tells TMZ he was leaving dinner with a friend last night in beantown, when a huge guy approached him in the parking lot and yelled: "I heard you’re doing a show here tomorrow. This is the town of the New Kids." 

Aaron claims three other guys then jumped out of a gold Chevy Malibu, and started the beat down, which came complete with a shot to his face.

The singer claims he landed a few punches before the NKOTB-lovers took off - "I think my knuckles might be broken, but that's what they get. People think I'm a pretty little white boy but no way. I think I won. I'm still standing."

According to TMZ, Aaron says he's performing as scheduled tonight, and he's not filing a police report because it's "girlie." 

Two shocking things: Who knew NKOTB fans were so hard? And ... Aaron Carter still sings?


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