Alesha Dixon and Pixie Lott will be performing at a concert launching the Royal British Legion Poppy Appeal.
The pair, who are also faces of Poppy Appeal 2012, will star at the free event in Trafalgar Square in London, marking the start of the fundraiser, which aims to accrue £42 million worth of charitable donations.
The Boy Does Nothing singer Alesha will perform with will perform with The Corps of Drums of the 1st Battalion Coldstream Guards and 1st Battalion Irish Guards.
It's All About Tonight singer Pixie will appear alongside trumpeters from the Band of the Grenadier Guards.
As well as featuring performances from the ladies, The Military Wives choir and James Fox will perform Poppy Appeal single Landlocked at the showcase.
The Royal British Legion spends £1.7 million a week on care and support for military families.
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