It’s not every day you get word of an aria-belting soprano covering bands like Arcade Fire or Band of Horses. But opera singer Renée Fleming is doing just that with her new album, Dark Hope, which she describes as a “visit to a new, parallel universe.” The 11-track album, due out May 18, features the Grammy-winning Fleming putting her own spin on classics like Leonard Cohen’s “Hallelujah” and Jefferson Airplane’s “Today.” New territory for Fleming, sure, but she’s not the first to wander a bit outside her musical realm. Here’s a handful of genre-bending covers from years past and some that we can only hope to hear in the future.
1. Britney Spears’ “Toxic” – Nickel Creek
2. T.I.’s “Whatever You Like” – Anya Marina
3. Dr. Dre’s “Bitches Ain’t Shit” – Ben Folds
4. Limp Bizkit’s “Rollin’” – Robbie Williams
5. Nirvana’s “Smells Like Teen Spirit” – Paul Anka
6. The Beatles’ “Nowhere Man” – Randy Travis
7. Kylie Minogue’s “Can’t Get You Out of My Head” – The Flaming Lips
8. Lil Wayne’s "Lollipop – jj’s “Ecstasy”
And a few we’d like to see…
Sigur Rós’ “Hoppípolla” – Whitney Houston
Will we always love you, Whitney, if you try to sing the Hopelandic lyrics of this iconic Icelandic band? Answer: probably. [Editor’s note: alas, this wasn’t to be. RIP Whitney]
Nine Inch Nails’ “Closer” – Michael Bublé
Just imagine the throwback crooner’s smooth voice belting out the infamous lyrics of this song’s chorus.
OutKast’s “So Fresh, So Clean” – She & Him
“Fresh” and “clean” take on a literal meaning coming from this adorable folk-pop duo. But we can’t decide who would be Big Boi and who would be Andre 3000.
Ray LaMontagne’s “Hold You In My Arms” – Hopesfall
Hearing the hardcore band’s treatment of the whispery quiet, bearded soulman’s emotional music would give a whole new meaning to “screamo.” Also, it might be the most unintentionally hilarious thing we’ve seen since this.
Taylor Swift’s “Love Story” – Three 6 Mafia
Both are Tennesseans, and wouldn’t you just love to hear the Oscar-winning gents behind “Hard Out Here for a Pimp” add some street cred to the Grammy-winning country darling’s ditty about Romeo?
Bon Iver’s “Woods” – Miley Cyrus
Miley listed “Bob” as one of her favorite musicians, so she’d probably like to take a crack at one of his songs.
Nickelback’s “Photograph” – Damien Rice
Because we can’t wait to see what Damien will do with the lyric: “What the hell is on Joey’s head?” Bonus points to Rice if he can somehow incorporate a “brine-soaked cucumber” into the song.
Joanna Newsom’s “Kingfisher” – Daft Punk
Because, really, we’d love to see anyone try to cover a Joanna Newsom nymph-inspired forest hymn well. But especially our favorite French robot dance duo.
Avett Brothers’ “Paranoia In B Major” – Vampire Weekend
New York Ivy-league gloss slathered atop a raggedy old Avetts song? Yes, please.

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Check out Richard Cheese's cover of NIN's "Closer."
Isn't Swift from Pennsylvania and not the south?
Don't forget Waterfalls (TLC) by Steve Poltz
http://www.youtube.com/watch?v=w1u0-1t0nDA
Ok, he may have already be included once, but Ben Folds Five's cover of Vaseline in lounge-style is top notch: http://www.youtube.com/watch?v=5-zhDFgGGhE
And it's not 90-degree genre twist, maybe 45, but Placebo's cover of Running Up That Hill deserves an honorable mention: http://www.youtube.com/watch?v=BdK9OlOzayE
I would have thrown The Cardigans version of "Iron Man" on that list.
Where can I find this She & Him cover of OutKast's "So Fresh, So Clean"? I'm dying to hear it.
I want to here this Three 6 Mafia cover also but I can't find them anywhere.
Paul Anka's cover of Nirvana has the unusual distinction of being a bad idea, well-executed. Doesn't work, but sounds good, anyway.
This is the worst list I have ever seen. The fact that someone would want to cover Limp Wristed's "Rollin'", and that it's here is sad, but most of the original songs are bad and the covers are worse. I hope you were on drugs when u made the list, so u have an excuse.
You missed Ray LaMontagne's cover of crazy by Gnarl's Barkley. Look for it on grooveshark