There have been several artists that have used the name Phoenix, the two best known are an alternative rock band from France and a folk rock band from Romania.
These are photos from concerts where Phoenix played, so they may be of other bands that played the concert as well.
Austin City Limits Music Festival 2009 Oct 2 - 4, 2009 Austin, Texas, United States Uploaded by Arnell
V Festival 2009 Aug 22 - 23, 2009 Chelmsford, England, United Kingdom Uploaded by Peter
Latitude Festival 2009 Jul 16 - 19, 2009 Southwold, England, United Kingdom Uploaded by Skdotcom
Coachella 2013 Apr 19 - 21, 2009 Indio, California, United States Uploaded by Mjhudson81