Tanx is the eighth studio album by English glam rock act T. Rex, released on 28 January 1973 by record label EMI. Tanx was a musical departure from previous works: still containing tracks in the vein of The Slider, Marc Bolan showed his interest for both American soul music and funky music. Female backing singers appeared on a few tracks. New instruments such as saxophone and mellotron were used, allowing the T. Rex sound to evolve.
Upon its release, Tanx peaked at number 3 in the UK Albums chart.