When was the band that released the single Ignorance formed ?
Ignorance (song): "Ignorance" is a song by American rock band Paramore. Ignorance (song):  It was released in July 7, 2009 as the lead single from the band's third studio album, "Brand New Eyes" (2009). Paramore: Paramore is an American rock band from Franklin, Tennessee, formed in 2004.
2004