Afer his nasty divorce with Christina Millian, The Dream should be careful about when he opens up about how much money he makes. The singer/producer recently told the world in 2007 was a big year for him -- not only did he sign a lucrative deal with Def Jam but he made $15 million off of Rihanna’s smash single,“Umbrella.” The Dream, real name Terius Nash, is now in the cross-hairs of the IRS.