In association with the supermarket, Breast Cancer Campaign and Breast Cancer Care, Lydia and Michelle are joined by Alexandra Burke, Diana Vickers and Kara Tointon, who have all slipped into feather dresses with two designed by Strictly Come Dancing star Julien Macdonald.
Talking about her involvement Michelle said, "I really enjoyed taking part in the campaign, which has already made a huge difference to women affected by breast cancer.
"I hope that it inspires people across the UK to join in and buy a Tickled Pink product to help raise much-needed funds."
While Julien has also designed a Bag for Life in support of the campaign, other Tickled Pink products include a special range of George t-shirts, PJs and undies, with £1 from each sale going straight to the charities.
What do you think? Will be joining ASDA's Tickled Pink effort?
BEYONCE & CHERYL COLE'S PINK NAILS FOR BREAST CANCER
JULIEN MACDONALD'S BREAST CANCER CARE BAG FOR LIFE
MARY BERRY'S PINK MACAROONS