(L-R) Rusty, Wix, Paul, Abe and Brian, Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Paul with Joe Walsh performing 'My Valentine', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Paul with Joe Walsh performing 'My Valentine', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Paul with Joe Walsh performing 'My Valentine', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Paul with Joe Walsh performing 'My Valentine', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Paul and Joe Walsh backstage, Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Paul signing autographs backstage, Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 (L-R) Krist Novoselic, Dave Grohl, Paul and Pat Smear performing 'Cut Me Some Slack', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Dave Grohl and Paul performing 'Cut Me Some Slack', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Krist Novoselic performing 'Cut Me Some Slack', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Pat Smear performing 'Cut Me Some Slack', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 (L-R) Krist Novoselic, Paul and Pat Smear performing 'Cut Me Some Slack', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 (L-R) Krist Novoselic, Dave Grohl, Paul and Pat Smear performing 'Cut Me Some Slack', Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Paul with SNL host Martin Short, Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Paul with SNL host Martin Short, Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 Paul with SNL host Martin Short, Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 End of the show with Krist Novoselic, Abe, Fred Armisen, Pat Smear, Carrie Brownstein, Martin Short, Seth Meyers, Samuel L. Jackson and Paul, Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012 After the show, Studio 8H, NBC Studios, Rockefeller Center, New York, 15th December 2012