Throughout his career, Ne-Yo has regularly been called upon by hip-hop's heavyweights to lend his vocals and songwriting abilities for their records. The Grammy Award-winning artist has worked with the likes of Rick Ross and Ghostface Killah on some of their biggest hits to date. We caught up with Ne-Yo earlier this month at Gig-It's star-studded launch party and got the stories behind five of his most notable hip-hop collaborations. Find out who "Make Me Better" was initially intended for and more after the jump.  —Emmanuel C. M. (@ECM_LP)