RIVALRY WEEK returns for Season 4--Rob and JP go head-to-head on something one loves and one hates!  In week 1, we talk the Grease soundtrack, which JP loves and Rob detests.  Whose side are you on? Tell us in our Facebook group at facebook.com/groups/greatsongpod! Connect with us on Twitter and Instagram @greatsongpod, and get all the archives and merch at greatsongpodcast.com!