In celebration of the twentieth anniversary of Zebrahead's formation, the band released their first compilation album "Greatest Hits? – Volume 1" on March 11, 2015 exclusively in Japan. As well as familiar material, the compilation features several re-recorded songs from the band's earlier albums with former lead singer/rhythm guitarist Justin Mauriello, this time featuring current lead Matty Lewis. The re-recorded songs were released separately outside Japan as the band's eleventh studio album under the title "The Early Years – Revisited" on April 21, 2015.