Music in game background

hello

guys i create a game with kodular and i want to add a background music in my game is it posible if i copy music from internet and place that in my app

is there any strike on my game for that background music ?

and

what if i pick up free like no copyrite music from internet

you can use free music which have free to use rights,

and background music can be played by player or exo player.

ok thank you