Carter the Unstoppable Sex Machine (frequently shortened to Carter USM) were an English indie rock band formed in 1988 by singer Jim "Jim Bob" Morrison and guitarist Les "Fruitbat" Carter. They made their name with a distinctive style of power pop, fusing samples, sequenced basses and drum machines with rock 'n' roll guitars and off-beat wordplay-loaded lyrics. They reached the height of their fame in 1992. Over the following years the band took on new members, topping out as a six-piece, but struggled to regain their earlier popularity. They initially split up in 1998 after releasing seven albums.