Covers can be an iffy thing. Nothing sucks more than having a song you like butchered to pieces, and conversely, it's a bit of an awesome surprise when a song you like is redone well. Thankfully, Rilo Kiley recently did a super job covering Pete Townshend's "Let My Love Open the Door" at South by Southwest.
It's a sweet, feel-good song in general and the cover doesn't mess with it too much, which is great. I like it way more than the Steve Carell-Dane Cook cover in Dan in Real Life, that's for sure.