Dankstinct on Instagram: "Leighton Meester was actually a natural blonde when she went after the role of Blair Waldorf in Gossip Girl (2007), which made the casting choice far from obvious at first. To separate herself from the bubbly, golden-girl image of Serena, she took matters into her own hands and dyed her hair dark brown in a sink just before a casting session. That simple but bold move helped her fully embody Blair’s sharp, controlled, and intimidating presence, proving she understood th