The wife of Manchester United footballer Wayne has exhibited the '60s styles from the midseason autumn/winter 2012 collection.
"The '60s is my ultimate fashion era," said Rooney.
"I really love that old-school glamour and it was really exciting emulating this look for my shoot."
Head of womenswear buying at Littlewoods.com Julie Donnelly added; "Coleen has a strong resonance with our customers as they can relate to her as a mother, wife and 'ordinary' woman.
"Her collections for Littlewoods have gone from strength to strength, leading the way in offering trend-led, stylish pieces which are wearable and easy to style."
Including swimwear, Rooney's latest AW12 midseason collection is her sixth and features A-line dresses, printed playsuits and embroidered kimonos. Her previous range debuted in June.
She first became a Style Ambassador for the brand in June 2010, designing her first range in spring/summer 2011.
Prices for the latest range from £25 to £100 and are available in sizes 8-24.