It is non-negotiable for a Hollywood star to look at her best. Often criticized for their fashion choices and appearance, these stars prove that they can turn a flop into fab. From Jennifer Lawrence to Adele, watch how these stars transform over time.

Jennifer Lawrence - The 21-year-old who used to be comfortable being a tomboy in the fashion department is now looking all stylish since the phenomenal success of "Hunger Games." According to her makeup artist Jillian Dempsey, the young actress likes to be "daring".

Miley Cyrus - It seems that the former Disney star has left behind her hobo look and prefers the classy style nowadays. Minimal makeup, polished dresses and makeup are her new staple now. Her makeup artist Kevin Posey tells even on her days off, Miley likes to talk about glam.

Adele - The spectacular singer went from brown hair to honey blonde upon her comeback at this year's Grammy Awards. Snipped into a 60's flip hairstyle, the 23-year-old singer looked most glamorous than ever.

Taylor Swift - Three years ago, the singer told that her favorite dress would be something she could pair with cowboy boots. Over the years, it seems like her fashion sense seem to have changed. Taylor now prefers styles which she describes as "feminine, girly".

Michelle Williams - Looking back during her "Dawson's Creek" days, the actress has improved enormously both in acting and in style. She broke in the fashion hit list when she chopped off her locks and donned a pixie haircut.

Nicole Richie - While her former best friend Paris Hilton seems to have never moved on with her lifestyle, Nicole shows that being a mother and a wife served her some good. She has bounced back from her weight loss and has continued to be one of Hollywood's effortlessly fashionable women.

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