My firend lieks to flow and he mixes up a lot of instrumentals and stuff and he is really good and stuff.... but he has a problem... he cant record his voice on the program taht he uses to screw up music. He wants a program taht he can make an mp3 play on and record and record his voice with it so taht he has a single mp3 with the music and his voice on it. ANy suggestions (plz dont say to play the music in the background and record both together or something )