Mariah Carey -- My Son Jacked My Walk Of Fame Moment! (VIDEO)

Mariah Carey's 4-year-old son Moroccan clearly has his mom's DNA ... he made a beeline for the spotlight during mommy's Hollywood Walk of Fame ceremony.

Carey received her long overdue star – the 2,556th star on the trail – Wednesday afternoon, but Roc deftly crashed the iconic photo op and wouldn't leave without some major prodding. You gotta watch Mariah ... she doesn't flinch.

Beacher's Madhouse at the Roosevelt Hotel hosted the post-ceremony luncheon where pals Lee Daniels, Brett Ratner and L.A. Reid stopped by to congratulate the pop diva.