Celebrity Style Watch: Blake Lively

Attending the world premiere of "The Sisterhood of the Traveling Pants" in 2005. (Reuters)

In a Ralph Lauren dress and Harry Winston jewelery at the 2008 Metropolitan Museum of Art Costume Institute Gala. (Reuters)

At the 2009 CFDA Fashion Awards in New York. (Reuters)

At the 61st Primetime Emmy Awards in Los Angeles. (Reuters)

At the 2010 Metropolitan Museum of Art Costume Institute Benefit. (Reuters)

At the 2011 CinemaCon in Las Vegas. (Reuters)

At the 2011 MTV Movie Awards in Los Angeles. (Reuters)

At the 2011 premiere of "Green Lantern." (Reuters)

At the 2011 BAFTA Brits to Watch event, also attended by Prince William and his wife Catherine. (Reuters)

At the Los Angeles premiere of the film "Savages." (Reuters)