This Tuesday on Fox, Gwyneth Paltrow returns to Glee as substitute teacher Holly Holliday in the episode Sexy. Holly Holliday must fill in for the absent sex-education teacher, and thus joins forces with Mr. Schuester (Matthew Morrison) to teach the kids of New Directions the facts of life. We have a sneak peak at this upcoming episode with Gwyneth Paltrow singing 'Do You Wanna Touch Me', as well as a new TV spot in the clips below.