Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)

Sir Paul McCartney

August 09, 2013 - San Francisco, California, United States: Sir Paul McCartney performs as part of Outside Lands Music Festival 2013 in San Francisco, California. (Thomas Long/POLARIS)