The X Factor winner will play at one of a series of acoustic gigs curated by Jo Whiley at the Union Chapel in Islington, London in aid of learning disabilities charity Mencap.
This year's concerts take place every night from November 16 to 24 and feature acts including Editors, Paloma Faith, Florence and the Machine and Taio Cruz.
Tickets are available now from selected HMV outlets.
The full lineup for the concerts is as follows:
- November 16 - Editors, The Maccabees, Bombay Bicycle Club, Everything Everything
- November 17 - Alexandra Burke, Alphabeat, Marina and the Diamons, VV Brown
- November 18 - Mika and the King's Singers, Paloma Faith, Alex Gardner
- November 19 - Richard Hawley, Hockey, I Blame Coco
- November 20 - Lostprophets, The Blackout, The King Blues
- November 21 - Taio Cruz, Tinchy Stryder, Chipmunk
- November 22 - Florence and the Machine, Golden Silvers, Erik Hassle, Ellie Goulding
- November 23 - David Gray The Low Anthem, Lisa Mitchell
- November 23 - Newton Faulkner, Scouting For Girls, Little Comets, Stornoway