Kaitlyn Bristowe has some competition, as AJ McLean also has his eye on the mirrorball trophy!Sources confirm to ET that the Backstreet Boys singer is set to appear on season 29 of which premieres Monday, Sept.
14 at 8 p.m. ET/PT on ABC.McLean, 42, seemingly teased his «big news» via Instagram on Monday, showing fans all the hard work he's been putting into his diet and fitness regime over the last five months.«I'm on a very strict diet, grain-free, gluten-free, sugar-free, no sodas of any kind, and completely sober for almost nine months,» he revealed. «This amazing, but rigorous, workout is all due to my amazing trainer, Mr.
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