The collection is made up of 1950s-style prom dresses and sexy pencil skirts and Holly appears with her hair done up in a beehive.
This is Holly's eighth collection in three years for the brand and she says: "My autumn/winter 2012 collection is by far my favourite collection. [It's] for women like me who want to feel fab without the hard work."
The range was launched in London last month and is available to buy online now.
Watch MTV News on the hour every hour on MTV - Sky Channel 126 and Virgin Channel 134