There are (or were) at least 14 bands called Empire including a podcast produced by the UK film magazine Empire.
These are videos from concerts where Empire played, so they may be of other bands that played the concert as well.
Bushwa Festival Jul 12, 2014 Providence, Rhode Island, United States Added by Jon O'dea
U2 / Damian 'Jr Gong' Marley / Empire Oct 28, 2005 Houston, Texas, United States Added by Rhythm Signal