yeah i did do that to my playlist... its way easy. just go to playlist.com and make your playlist then click the share button and it will ask you if you want to customize your playlist look and you change the thing to yes and find a picture that you like and take the direct http copy and paste it to where it says to put it. if you have any questions let me know :)
...I like Fruits Basket. >:3
& No problem!