He is famous for his amazing vocals.🎤

"Underdogs always gotta win!" A.J. McLean thinks. ⚾️

He likes to swim on Father's Day. 🏊🏻‍♂️

He recognizes big and huge and cute dogs. 🐕

Backstreet Boys AJ McLean and Nick crack each other's necks. 😅

AJ McLean celebrates the trans community with 'Love Song Love.' 👁️

No dad bod here! AJ showed off his ripped abs on Insta! 💪

AJ’s daughter changed her name and the proud dad is here for it! 👏