How do you take off vocals from a song?

Answer 1

U mean like, make ur own karaoke? i dont think thats possible, because karaoke CDs are sold

Answer 2

There are audio processing programs that try to do this, but they attenuate the frequencies where the vocals are most likely to be, so they're not perfect.

Some allow more flexibility by giving the user greater control over which frequencies are attenuated; I think Nero's program does this.

http://www.nero.com/