In 2001 CITRON joins with former Ladislav Křížek. The band produces memorial album "Síla návratů" (Power of returns) first of all with songs from period "Radegast" and with very beautiful and new title song. In this time there is short concert tour and then CITRON comes back to their earlier period without Ladislav Křížek. In 2004 is band invited to the U.S.A., where plays a few succesful concerts and shoots the clip to song "Rock, rock, rock". Next entrance follows at festivals and preparing new record and DVD. 17.6.2008 CITRON supporting for British legend JUDAS PRIEST in Ostrava. In february 2009 leaves band Libor Kozelský. He is replaced by Jiří Šperl.