All Birthdays / January / January 9 / AJ McLean AJ McLean Singer Born 1978 Birthday January 9 Profession Singer Nationality American Notable Achievement Backstreet Boys member Fun Facts 🎂 Birthday Date AJ McLean was born on January 9 🌟 Share Birthday See who else was born on this day View all → Share This Birthday 🐦 Twitter 📘 Facebook 🔗 Copy Link Explore More All January 9 Birthdays See everyone born on this day January Birthdays Browse the full month Today's Birthdays See who was born today