video+music

how to put a music n video into a video ar?
so its like u see the video but hear another song..
kinda noob here..

anybody know?

i know but i don’t want to tell you.

Shocked lau..

other than that?like the video u recorded urself..then u add music inside..how...

windows movie maker

x2

its the easiest i can think of. good for beginners.