How can you get vocals on mp3?

Answer 1

well first, i hope your talking about your own music

second, you get a mic on your computer if you didn't have one already

next you find a program that lets you record your singing or friend singing

last, you save it to your computer and move/ copy it you your mp3 and ta da, you have it on your mp3

PS, song mp3's have programs/apps where you can record yourself

i hope this helped ^^