Forget You by Cee Lo Green & Gwyneth Paltrow in Glee

I really like the episode "The Substitute" of Glee, the best for me.  The parts that I like are when Paltrow slides through the buttered floor...cool, then when she sings Forget You, soo likey!  I also like the mash-up songs of Umbrella and Singin' in the Rain, lovely.  Here's the video of Forget You by Cee Lo and Glee.  Which rocks?