"Will You Love Me Tomorrow/Head Over Feet" originally by The Shirelles (Carole King's version)/Alanis Morissette is a mash-up that is featured in Jagged Little Tapestry, the third episode of Season Six. It is sung by Jane (Samantha Marie Ware) and Mason (Billy Lewis Jr.).
No copyright infringement is intended. Please note I do not own any of these songs or clips. If you are interested in this song it is available to buy and download from Google Play & iTunes along with all 121 Episodes from all 6 seasons. :)