Article continues below advertisementSean 'Diddy' Combs Allegedly Rapped Lyrics Ghostwritten by 50 CentSource: MEGASean 'Diddy' Combs and 50 Cent's feud began more than two decades ago.Sean "Diddy" Combs and 50 Cent's relationship seemed doomed from the very beginning.Years after the Bad Boy Records co-founder kicked off his career, he appeared on G. Dep's "Let's Get It," where he sang verses that 50 Cent allegedly ghostwrote during a collaboration with Jay-Z.