Eternal have signed up to join ITV2's 'The Big Reunion'.
Sisters Kelle Bryan and Vernie and Easther Bennett will appear on the second series of the hit show, but Louise Redknapp will not be taking part.
Louise, 38, is married to retired soccer star Jamie Redknapp and has built a successful TV presenting career since giving up her pop star ambitions.
However, bosses of the show are still hopeful Louise may change her mind.
A source told The Sun newspaper: "Bosses really want Louise to be part of the group for the reunion."
It's reported the new series of 'Big Reunion' will consist of eight episodes and will spawn a 15-date arena tour in May 2014, followed by a three-episode 'Big Reunion on Tour' spin-off show in September 2014.
Eternal formed in 1992 as a British R&B girl group, but Louise quit the band at the height of their fame in 1995 to launch a solo career.
The group carried on as a trio until Kelle was fired by sisters Easther and Vernie in 1998.
The first series of 'Big Reunion' saw boy band 5ive reunite without original J Brown.
'Take On Me' band A1 are also expected to be part of the second series of the hit ITV2 reality show.
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