Sherwood is the name of at least 2 bands:
These are photos from concerts where Sherwood played, so they may be of other bands that played the concert as well.
The Academy Is... / Cobra Starship / Armor for Sleep / The Rocket Summer / Sherwood Nov 14, 2007 Big Rapids, Michigan, United States Uploaded by Tylevision
Lollapalooza 2007 Aug 3 - 5, 2007 Chicago, Illinois, United States Uploaded by Kumo
Lollapalooza 2007 Aug 3 - 5, 2007 Chicago, Illinois, United States Uploaded by Josh5180
The Polyphonic Spree
Silverchair