give (one) a makeover

To alter one's appearance, especially by making dramatic changes to one's hair, clothing, makeup, etc. "Makeover" is often hyphenated. Katie is having a sleepover, and all of her friends are going to give each other makeovers. After the woman at the make-up counter gave Kim a make-over, and I almost didn't recognize her! A: "Yikes, we desperately need to give this bathroom a makeover." B: "What gave it away, the pink tile?"