Spoilers about Mark and Lexie's relationship were posted earlier that revealed that Lexie would be changing her hair color to blonde. Well, just in case you guys missed it when the "Valentine's Day Massacre" promo photos, here is Lexie with her blonde hair!
Also, Sarah Drew's character, April, is back after being fired. No spoilers yet on why she's back but E! Online tells us that the white coat she's wearing from the promotional photos definitely says Seattle Grace Mercy West!
Source: E! Online