The Zealot Gene is the twenty-second studio album by the British rock band Jethro Tull, released on 28 January 2022 by Inside Out Music. Nearly five years in production, it is their first studio album since The Jethro Tull Christmas Album (2003), and their first of all original material since J-Tull Dot Com (1999), marking the longest gap between the band's studio albums. It is also their first album since This Was (1968) to be made without guitarist Martin Barre.