Lea Michele was on set filming for Glee on Wednesday and teased her followers by tweeting: "For Halloween I'm being..." The actress followed up with a very sexy photo of herself with the caption: "RACHEL BERRY!" Apparently, she was filming the Christmas episode. Either way, 'Rachel Berry' definitely looks like she's grown up a bit. Director and choreographer Adam Shankman tweeted a photo of her laying in bed on set, as well. We can't wait to see this episode.