It's the silly season, and this John McCain-Sarah Palin spoof -- "I Picked a Girl" -- is Tina Fey-funny. "I can shoot a moose! Kill your right to choose! Mesmerize you with my up-do!" the Palin look-alike sings. To be bipartisan about it, we also offer this ditty poking fun at Joe Biden, but it's not as funny.