BOSTON (CBS) – Neil Diamond made a surprise appearance at Fenway Park Saturday afternoon.

Diamond flew into town on his own and asked the Red Sox if he could sing “Sweet Caroline” as a live performance.

The song is an eighth inning tradition at Fenway Park that’s been adopted by teams around the Major Leagues this past week to show their support for Boston.

As Diamond left the field, the crowd chanted “U.S.A.! U.S.A.!