Pussycat were originally a band formed by the three Kowalczyk sisters - Tonny, Betty and Marianne - called Sweet Reaction. They were joined by Tonny's husband, Lou Wille, Theo Wetzels, Theo Coumans and John Theunissen. After signing to the EMI label their producer Eddy Hilberts asked the band to change their name to Pussycat and record a country-rock song, "Mississippi," written by the guitar tutor of the girls in the band, Werner Theunissen. It became a massive seller for the group, selling 5 million copies worldwide. The song's follow-up "Smile" peaked at #24 in the UK, their only other chart entry, but on continental Europe Pussycat continued to enjoy some success releasing 17 albums in total.