Glee Season 2 Episode 15 "Sexy"

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Gwyneth Paltrow will be reprising her role as Holly Holiday in the new 'Sexy' episode of 'Glee,' and things are about to heat up between the substitute teacher and Will Schuester.

In Season 2, Episode 15, Holly is assigned to teach sex education, and teams up with Will to explain the birds and the bees to the students at William McKinley High. In the meantime, the spark between Holly and Will is revisited in a cover of Prince's 'Kiss.'

Holly also enlists the help of New Directions on a rendition of Joan Jett and the Blackhearts' 'Do You Wanna Touch Me (Oh Yeah),' which, in true 'Glee' form, pushes the envelope as much as the episode's cover of 'Afternoon Delight,' which is sung by Emma, Carl, Quinn, Rachel and Puck.

Paltrow gets another chance to shine during the show with her version of Fleetwood Mac's 'Landslide,' a song that also involves Brittany and Santana. Of course, the new episode wouldn't be complete without a Warblers performance -- the group sings Neon Trees' 'Animal' in preparation for Regionals.

Paltrow's three new songs appear on 'Glee: The Music, Volume 5,' which will be available in stores and on iTunes on March 8, the same day the new episode of 'Glee' airs.

Until then, check out the Season 2, Episode 13 song list below, and tune in to AOL Radio's 'Glee' station to hear songs from the new show, as well as past episodes.