Atomic Kitten are an English pop girl group formed in Liverpool in 1998 whose current members are Natasha Hamilton, Kerry Katona and Liz McClarnon, with Michelle Heaton filling in for Liz at International shows.The band was founded by Orchestral Manoeuvres in the Dark (OMD) frontman Andy McCluskey, who served as a principal songwriter during their early years. Sugababes singer Heidi Range was included in the original line-up but was replaced by Hamilton. The group's debut album Right Now was released in October 2000 and peaked at number 39 in the UK. After four top ten singles, Katona quit the group and was replaced by former Precious singer Jenny Frost. "Whole Again" (recorded before Katona left), their next single, became their most successful single when it topped the UK singles chart a