Atomic Kitten are an English pop girl group formed in Liverpool in 1998, consisting of members Liz McClarnon, Natasha Hamilton and Kerry Katona. The group was formed by Orchestral Manoeuvres in the Dark (OMD) frontman Andy McCluskey, who served as a principal songwriter during the band's 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 a disappointing #39 in the UK. After four top ten singles, Katona quit the group and was replaced by former Former Precious singer Jenny Frost. "Whole Again", their next single, became their most successful single when it topped the UK singles chart and became the 13th best-selling single of the 2000s. The group re-released their debut album, with some tracks re-recorded with Frost's vocals which hit #1 in the UK with the album going on to sell over 600,000 copies in the UK.
Between 2002 and 2004, the group released a further two studio albums, Feels So Good and Ladies Night, and a greatest hits album before announcing a break following their 2004 tour. The group sold over 10 million records worldwide. Their first two albums went double platinum in the UK. To date the group have had three UK #1 singles: "Whole Again", the fourth-best-selling girl-group of all time; "Eternal Flame", a song originally recorded by The Bangles; and "The Tide Is High (Get the Feeling)", a song originally recorded by The Paragons and by Blondie.