Paul McCartney poses backstage during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Katy Perry
Katy Perry performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney and Ringo Starr
Paul McCartney and Ringo Starr of The Beatles perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Salute to The Beatles
Recording artists Steve Lukather, Peter Frampton, Paul McCartney, Annie Lennox, Dan Reynolds and Ben McKee of Imagine Dragons and Jeff Lynne appear during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney and Ringo Starr
Ringo Starr and Paul McCartney perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Adam Levine
Adam Levine, of the musical group Maroon 5, performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney and Ringo Starr
Paul McCartney and Ringo Starr perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney
Paul McCartney performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney
Paul McCartney performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Rusty Anderson, Paul McCartney and Brian Ray
Rusty Anderson, Paul McCartney and Brian Ray perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Ringo Starr and Paul McCartney
Ringo Starr and Paul McCartney perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Rusty Anderson and Paul McCartney
Rusty Anderson and Paul McCartney perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Rusty Anderson, Paul McCartney and Brian Ray
Rusty Anderson, Paul McCartney and Brian Ray perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney and Brian Ray
Paul McCartney and Brian Ray perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney and John Legend
Paul McCartney and John Legend speak during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Salute to The Beatles
Actors Jeff Bridges and Susan Geston and recording artist Paul McCartney speak during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney
Paul McCartney performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Salute to The Beatles
Steve Lukather, Peter Frampton, Annie Lennox, Dan Reynolds of Imagine Dragons, Jeff Lynne, Ed Sheeran, Joe Walsh, Eric Idle and Paul McCartney during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Sean Penn
Sean Penn introduces Paul McCartney during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Peter Frampton
Peter Frampton performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Jeff Bridges
Jeff Bridges introduces Ringo Starr during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Keith Urban, Jeff Lynne, Joe Walsh, Dave Stewart, Adam Levine, Dave Grohl and John Legend
Keith Urban, Jeff Lynne, Joe Walsh, Dave Stewart, Adam Levine, Dave Grohl and John Legend perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Stevie Wonder
Stevie Wonder performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Alicia Keys
Alicia Keys performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
John Mayer and Keith Urban
John Mayer, left, and Keith Urban perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Joe Walsh, Dave Grohl and Gary Clark Jr.
Joe Walsh, Dave Grohl and Gary Clark Jr. perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Pharrell and Stevie Wonder
Pharrell Williams and Stevie Wonder perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Kate Beckinsale
Kate Beckinsale introduces performers during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Joe Walsh, Jeff Lynne and Dhani Harrison
Joe Walsh, Jeff Lynne and Dhani Harrison perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
The Eurtyhmics
Annie Lennox and Dave Stewart of the Eurythmics perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Salute to The Beatles
Pharrell Williams, Brad Paisley and Cirque du Soleil's "LOVE" perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
LL Cool J
LL Cool J speaks during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Salute to The Beatles
Keith Urban, Jeff Lynne, Joe Walsh, Dave Stewart, Adam Levine, Dave Grohl and John Legend perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Stevie Wonder
Stevie Wonder performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Alicia Keys
Alicia Keys performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
John Mayer and Keith Urban
John Mayer, left, and Keith Urban perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Joe Walsh, Dave Grohl and Gary Clark Jr.
Joe Walsh, Dave Grohl and Gary Clark Jr. perform during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney
Paul McCartney performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.