Much as I hate that Shrek, and multiple other movies, series, shows, whathaveyou, have ruined the song to almost unbearable, I very much like the rendition of Hallelujah, by Jeff Buckley (over Cohen’s version).
I love Helen Feng’s piano version of Frank Zappa’s The Black Page #1. The original Zappa version is a drum solo and I’m not very keen on drum solos. Helen Feng’s version is quieter and more thoughtful and really brings out the beauty of the composition.
I quite like “Burning down the house” by Talking Heads, but I like the cover by Tom Jones and The Cardigans even more… the combination of their voices is superb.
I’m not a fan of Glee but their take on Journey’s “Don’t stop believin’” is quite nice.
I can think of several, but the one song that stands out for me is the cover version of the Elvis Presley classic “Burning Love”, performed by the funk/rock group Mother’s Finest: