We were pretty shook to find out that Blake Lively almost didn鈥檛 land the part of Serena van der Woodsen on Gossip Girl, but as it turns out, the show鈥檚 other female lead, Leighton Meester, also nearly didn鈥檛 get the role. But thanks to one quick last-minute change to her appearance, Meester was cast as the Queen B we know and love to hate.

Although Meester, 31, was undoubtedly born to play the role of Waldorf, she didn鈥檛 exactly look the part of Upper East Side鈥檚 Blair Waldorf when she auditioned for the hit CW show (now celebrating its 10th anniversary). Fellow co-star Chace Crawford, for one, couldn鈥檛 see it right off the bat, recalling to Vanity Fair, 鈥淚 just don鈥檛 see her as Blair. I can鈥檛 see it.鈥 But after spinning around in her chair and making her persona known, the actor was convinced. 鈥淚 just remember thinking, that girl can act. She鈥檚 the perfect girl for this.鈥

Showrunner Joshua Schwartz was equally impressed, calling Meester 鈥渞eally funny and really smart,鈥 but as he says, 鈥淭here was one problem: She was blonde. And Blake was blonde, obviously. Serena had to be blonde.鈥

But Meester was determined. So much so that she took care of the problem immediately. 鈥淸So] Leighton went to the sink and dyed her hair,鈥 Schwartz recalled. 鈥淪he wanted it.鈥 Talk about commitment!

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(Photos via Frederick M. Brown, Alexander Tamargo, + Slaven Vlasic/Getty)