I was watching an episode of House when I heard this rendition of Cristina Aguilera's "Beautiful" coming from Hugh Laurie's iPod headphones and I thought "that's Costello. That's Costello's voice doing that cover." I searched and searched and searched and I never found a copy. At long last, Fox released the soundtrack and thankfully, the cover is on it. My obsession grows by the minute:
**UPDATE** I added some other songs from the soundtrack.