PAUL MCCARTNEY: WHO ARE THESE GUYS?

The Associated Press
Paul McCartney, left, and Dave Grohl, right, accept the award for best rock song for “Cut Me Some Slack" at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)

The day Paul McCartney stole away with Dave Grohl to write and record a new song, there were two other guys in the studio that the former Beatle didn't recognize. Joining Grohl and McCartney in creating "Cut Me Some Slack'" were Krist Novoselic and Pat Smear.

"It was magic for me playing with these guys," McCartney said backstage Sunday after they won a Grammy for best rock song. "Tell you the truth, I didn't know who they were. I found myself in the middle of a Nirvana reunion."

— Beth Harris, www.Twitter.com/bethharrisap

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EDITOR'S NOTE — Show Bits brings you the 56th annual Grammy Awards in Los Angeles through the eyes of Associated Press journalists. Follow them on Twitter where available with the handles listed after each item.