The Black Keys - "Dearest"

LAS VEGAS, NV - FEBRUARY 14: (EXCLUSIVE ACCESS) Recording artists Patrick Carney (L) and Dan Auerbach of The Black Keys perform at the launch of AG Adriano Goldschmied's "backstAGe presents:" initiative at the Marquee Nightclub at the Cosmopolitan of Las Vegas February 14, 2011 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images for AG Adriano Goldschmied)

Fiona Apple (with Jon Brion) - "Every Day"

BEVERLY HILLS, CA - FEBRUARY 28: Recording artist Fiona Apple performs during the Venice Family Clinic Silver Circle 2011 Gala at the Beverly Wilshire Hotel on February 28, 2011 in Beverly Hills, California. (Photo by Frederick M. Brown/Getty Images)

Jon Brion (with Fiona Apple) - "Every Day"

NEW YORK - APRIL 26: Musician Jon Brion speaks at "The House That Brion Built" panel discussion at the Tribeca Film Festival April 26, 2005 in New York City. (Photo by Bryan Bedder/Getty Images)

Paul McCartney - "It's So Easy"

LONDON, ENGLAND - DECEMBER 18: Sir Paul McCartney performs live at at the Hammersmith Apollo on December 18, 2010 in London, England. (Photo by Ian Gavan/Getty Images)

Florence and the Machine - "Not Fade Away"

NEW YORK, NY - DECEMBER 15: (L-R) Harpist Tom Monger, singer Florence Welch and guitarist Robert Ackroyd of Florence and the Machine perform during Spin's 2010 Year in Music party at Don Hill's on December 15, 2010 in New York City. (Photo by Michael Loccisano/Getty Images)

Cee-Lo - "(You're So Square) Baby, I Don't Care"

NEW YORK, NY - MAY 21: Cee Lo Green performs onstage to celebrate the global tour of the Range Rover Evoque at the Winter Garden on May 21, 2011 in New York, United States. (Photo by Roger Kisby/Getty Images for Range Rover Evoque)

Karen Elson - "Crying, Waiting, Hoping"

NEW YORK, NY - MARCH 11: Model and singer Karen Elson of The Citizens Band performs at the 2nd Annual Diller-von Furstenberg Awards at United Nations on March 11, 2011 in New York City. (Photo by Michael Loccisano/Getty Images)

Julian Casablancas - "Rave On"

CHICAGO - AUGUST 06: Julian Casablancas of The Strokes performs onstage during the 2010 Lollapalooza festival in Grant Park on August 6, 2010 in Chicago, Illinois. (Photo by Roger Kisby/Getty Images)

Jenny O. - "I'm Gonna Love You Too"

Photo credit: Jonathan Leder

Justin Townes Earle - "Maybe Baby"

NASHVILLE, TN - SEPTEMBER 17: Artist of the Year Justin Townes Earle performs at the 8th annual Americana Honors and Awards at the Ryman Auditorium on September 17, 2009 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images)

She & Him - "Oh Boy"

INDIO, CA - APRIL 16: Musician M. Ward (L) and singer Zooey Deschanel from the band She & Him perform during day one of the Coachella Valley Music & Arts Festival 2010 held at the Empire Polo Club on April 16, 2010 in Indio, California. (Photo by Karl Walter/Getty Images)

Nick Lowe - "Changing All Those Changes"

NEW YORK - APRIL 29: Musician Nick Lowe performs during the Tribeca ASCAP Music Lounge at the 2008 Tribeca Film Festival on February 29, 2008 in New York City. (Photo by Matt Carr/Getty Images)

Patti Smith - "Words of Love"

NEW YORK, NY - MAY 17: Musician Patti Smith performs onstage at the 2011 Joyful Heart Foundation Gala at The Museum of Modern Art on May 17, 2011 in New York City. (Photo by Mike Coppola/Getty Images)

My Morning Jacket - "True Love Ways"

INDIO, CA - APRIL 27: Musicians "Two-Tone" Tommy (L) and Jim James (C) fom the band My Morning Jacket perform during day 3 of the Coachella Valley Music And Arts Festival held at the Empire Polo Field on April 27, 2008 in Indio, California. (Photo by Kevin Winter/Getty Images)

Modest Mouse - "That'll Be the Day"

UNIVERSAL CITY, CA - DECEMBER 09: Isaac Brock (right) and Modest Mouse performs at the KROQ Almost Acoustic Xmas on December 9, 2007 in Universal City, California. (Photo by Karl Walter/Getty Images)

Kid Rock - "Well... All Right"

NEW ORLEANS, LA - MAY 08: Singer/Songwriter Kid Rock performs during the 2011 New Orleans Jazz & Heritage Festival - Day 7 at The Fair Grounds Race Course on May 8, 2011 in New Orleans, Louisiana. (Photo by Rick Diamond/Getty Images)

The Detroit Cobras - "Heartbeat"

Photo credit: Doug Coombe

Lou Reed - "Peggy Sue"

NEW YORK - DECEMBER 01: Musician Lou Reed performs "Satellite of Love" onstage with Alicia Keys at "The Pusher's Ball" to benefit the "Keep A Child Alive" charity at The Angel Orensanz Foundation Center for the Arts December 1, 2004 in New York City. (Photo by Peter Kramer/Getty Images)

John Doe - "Peggy Sue Got Married"

INDIO, CA - APRIL 26: Musician John Doe of The Knitters performs onstage during day two of California's Stagecoach Country Music Festival held at the Empire Polo Club on April 26, 2009 in Indio, California. (Photo by Frazer Harrison/Getty Images)

Graham Nash - "Raining in My Heart"

LONDON, ENGLAND - JUNE 27: Graham Nash of Crosby, Stills and Nash performs during day 3 of the Hard Rock Calling festival held in Hyde Park on June 27, 2010 in London, England. (Photo by Gareth Cattermole/Getty Images)