The pop singer is to appear in the "Create a storm" print campaign lying naked on silk and velvet Monsoon cushions on a sofa, and holding a wild orchid.
She follows in the footsteps of models Sophie Dahl and Jodie Kidd in modelling for the brand. Kidd featured in a campaign for Monsoon wearing a strip of lace to pose on a horse.
The singer, who sang 'Murder on the Dancefloor' and 'Get Over You', has been out of the spotlight for a couple of years after taking time out to have a baby and marry The Feeling's bass player Richard Jones.
As well as making her debut in the campaign, Ellis Bextor is to release a new single 'Catch You', followed by her album 'Trip The Light Fantastic' later in September.
Ellis Bextor said: "I am really excited to be part of the new Monsoon campaign. I am also looking forward to wearing some of the clothes."
Photographer Alexi Lubomirski shot the campaign, while the stylist is Anne Marie Curtis.
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This article was first published on brandrepublic.com