According to TMZ, rapper 50 Cent used bitcoin as payment for his 2014 album, "Animal Ambition." TMZ adds that since the red-hot cryptocurrency has risen in trading to about $11,300, 50 Cent's 700-bitcoin investment is now worth $7 million to $8.5 million. About a decade ago, 50 Cent also became a minority shareholder and celebrity spokesman for VitaminWater.