Powerline - World's Greatest Rock Star

Shift 4 (You may pay 4 Ink to play this on top of one of
your characters named Powerline.)

Singer 9

Once during your turn, whenever this character sings a song, look at the top 4 cards of your deck. You may reveal a song card with cost 9 or less and play it for free. Put the rest on the bottom of your deck in any order.