Shaquille O'Neal still adamantly denies he's the big man in the photo burning up social media, using a Shaggy hit to get the word out ... this after the woman shared evidence she claims proves she was with the Big Fella!
52-year-old Shaq shared a video on Instagram ... where the Hall of Famer, sitting alongside Peter Gunz, lip-synced to Shaggy's 2000 hit, "It Wasn't Me".
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The video is a response to a woman named Maria Ozuna Teachey .