T-shirts designed by Girls Aloud in a KitKat Senses on-pack promotion.
One hundred and sixty five T-shirts in five
designs will be given away every day throughout September.
To enter , consumers can text a number found on wrappers or enter via kitkat-senses.co.uk.
The push will support the Make-A-Wish Foundation, a
charity that helps grant wishes
for terminally ill children.
Trade communications manager Graham Walker said: "Girls Aloud are renowned for their style almost as much as their music, so we expect these unique Kit Kat T-shirts to create massive demand."
TV, press, outdoor and London Underground ads will promote the
give away, and in-store POS materials featuring Girls Aloud will be available for retailers.
KitKat Senses is targeted at calorie-counting
women and contains 165 calories per bar.