brand new bag
Making a major change in one's life for the best, especially applies to people who have made themselves more attractive from ugly qualities.
She has potential to look good, but since that chick has a haircut that looks like she lost a bet, and wears clothes from the 99 cent bin, it can safely be said that she needs a brand new bag.
Papa sucked a brand new bag
One of James Brown's most famous songs.
In this song, the godfather of soul did not yell out uh ah grunt maceo