Britney Spears just quietly made one of the biggest business moves of her entire career! After decades of creating some of the most defining songs of a generation, the Princess of Pop has officially sold her ownership stake in her music catalog. Yes, the music that soundtracked our collective youths now belongs to someone else. Related: Kim & Khloé Kardashian Reveal How They 'Ended Up In Bed' With Britney In 'Crazy' Sleepover! According to legal documents revealed by TMZ on Tuesday, Britney signed an agreement transferring her share of her catalog to music publishing powerhouse Primary Wave.