Warhorse was a British rock band formed by the bass guitar player Nick Simper. Organist and composer Caleb Simper (1856-1942) was born in Barford St Martin. She then formed the group Slippry Feet with friend Paul Simper. Later that year, Nick Simper & Nasty Habits played another show in Plock, Poland. Simper was contacted, and Blackmore was recalled from Hamburg. Simper played bass on three Deep Purple albums from 1968 to 1969. In March 2009, Simper again performed with Nasty Habits in Austria. Simper also had a brief spell with Lord Sutch's Savages. Simper was born in Frogmore House Maternity Home, Norwood Green, Southall, Middlesex. Simper played "Hush" as a guest with this band, using bassist Pete Hartley's bass guitar.