Boxing legend Oscar De La Hoya is celebrating his birthday early this year ... by droppin' trou and doing an underwear photoshoot with his smokin' hot GF, Holly Sonders.
The Golden Boy's 49th birthday is on Friday ... and instead of leading up to his cake day with some presents and blowing out candles, he decided to put his modeling skills to the test and go nearly nude with his ride or die.
TMZ Sports is told ... Holly wanted to make ODLH's day so special, she enlisted photogs Collin Stark and Allen Henson to take some iconic images to make the day even more unforgettable for the couple.