The stars of ‘The Big Reunion’ reckon Kylie nicked the song - which hit the No.1 spot in over thirty countries - before they had chance to get into the studio to record it.
Band member Liz McClarnon told Digital Spy: “I'll tell you what was going to be our song - Kylie's 'Can't Get You Out of My Head'.
"Can you believe it? She robbed our song. She's a little robber."
Natasha Hamilton then joked: “I'd have given that all-in-one a good go, though!”
Never mind, girls, at least you got to cover ‘Ladies Night’ with Kool & The Gang. Every cloud, eh?
Atomic Kitten were recently announced as one of the acts taking part in the ‘Another Time, Another Place’ tour, along with All Saints and East 17.
Natasha recently joked to So So Gay that the November tour would be perfect timing for Atomic Kitten, as “everyone in the band seems to be popping out babies at the moment”.
Kerry took to her Twitter page on Tuesday night to thank fans for their support following what she described as a “very traumatic” birth.