Apparently Kanye wrote Gold Digger with a female in mind and sent it to Shawnna (she was featured on Ludacris' #1 hit, "Stand Up," in 2003.) but she passed on it.
Disturbia (2008)
Chris Brown => Rihanna
Brown wrote this song for a rerelease of his “Exclusive” album. Then Rihanna heard it, and when Brown agreed that it would work better as a female-oriented song, she took it — to No. 1. In light of recent events, perhaps Brown’s allowing his girlfriend to have “Disturbia” was a hint that he might have a hidden dark side.