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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.
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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
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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
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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
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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
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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
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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
Kevin Winter/Getty Images
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
Kevin Winter/Getty Images
Paul McCartney performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Paul McCartney
Kevin Winter/Getty Images
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Peter Frampton performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Jeff Bridges
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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
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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
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Stevie Wonder performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Alicia Keys
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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
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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.
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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
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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
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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
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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
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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
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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
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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
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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
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Stevie Wonder performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.
Alicia Keys
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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
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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.
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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
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Paul McCartney performs during "The Night That Changed America: A Grammy Salute To The Beatles" on Jan. 27, 2014, in Los Angeles.