"Whole Again" is the fifth single released from British pop girl group Atomic Kitten's debut album, Right Now (2000). It is the group's biggest selling single to date and was the final single to feature founding member Kerry Katona, who left the group midway through promoting the single. "Whole Again" was the first single released from the album in Europe, Australia, New Zealand and South Africa. It was a massive success, reaching number one in several countries, and sold 1 million copies in the UK alone. Among the song's writers was OMD frontman and Atomic Kitten founder Andy McCluskey, who achieved his only UK number one single with the track.