There are two artists known as Back Door Slam. One is the name of the band started by Davy Knowles www.davyknowles.com on the Isle of Man in 2003/4. The band got its name from a Robert Cray song of the same name. Originally a four piece, with Castle Rushen High School friends Jamie Armstrong (bass), Ross Doyle (drums) and Brian Garvey (rhythm guitar), the band was torn apart in 2004 when Brian was killed in a car accident along with their close friend Richie Brookes.
These are photos from concerts where Back Door Slam played, so they may be of other bands that played the concert as well.
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
Silverchair
The Polyphonic Spree