Former UB40 singer Ali Campbell let it all hang out in New Zealand this weekend ... by going topless in public.
While holding a glass of what appeared to be red red wine, the 53-year-old flashed his buxom man breasts on a balcony in Auckland.
FYI -- UB40 released "Red Red Wine" back in 1983. Unclear if he was still rockin' the nipple ring back then.
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