We know these two have a long history together, so when we saw this song, everyone already knew what it was. With her EP 4U set to release this Friday, Christina Milian releases the video for her Lil Wayne collaborative single “Do It.” Starring both in her second season of her E!show Turned Up and the first season of Fox’s new hit Grandfathered, Milian continues to show the wide range of her talents. Pre-Order 4U here: iTunes – http://smarturl.it/CMilianiTe.