Blake Lively is known for her golden locks, but we think she's beautiful even without the blonde hair. Here, we switched the Gossip Girl actress to a brunette, giving her a more sophisticated, "Blaire Waldorf" look.
Gwen Stefani has had the same platinum hair since the 90s, and we're bored. Perhaps this trendy mother should switch to a more natural blonde color. Let her hair down, literally, and get comfortable with her roots.
Dark hair was perfect for teen Rory in Gilmore Girls, but as an adult, we think Alexis Bledel could go bold with her color. There are several great shades that would work with her blue eyes, but red seems be the most sultry.