The singer-turned-fashion entrepreneur tied the knot with Sam Cooper in an intimate ceremony at the St James the Great church in Cranham, near Stroud, Gloucestershire, South West England, on Saturday afternoon (11.06.11).
The 26-year-old pop star was accompanied into the small church by her father, comedian-and-actor Keith Allen, and her huge smile was clear to see for all the cheering well-wishers who had gathered outside to catch a glimpse of the bride.
Lily looked beautiful in her wedding dress, which was designed by Delphine Manivet and had a fishtail skirt, lace overlay and lace sleeves similar to the gown Duchess Catherine wore when she tied the knot with Prince William in April.
The `Not Fair` hitmaker completed her outfit with an elaborate and lengthy lace headdress with a flower detail on the side of her veil and she was carrying a rose bouquet created from peach, cream and pink flowers.
Among the bridesmaids was `T4` presenter Miquita Oliver, Lily`s friend since childhood, who wore a peach gown.
Less than 100 guests attended the wedding, including comedian Harry Enfield - who previously dated Lily`s mother, film producer Alison Owen - TV star Angus Deayton, the singer`s actor brother Alfie and her half-sister Sarah Owen, who she runs vintage fashion boutique Lucy In Disguise with.
Lily and Sam - who runs a building firm - paid for extra policing to be present on their big day and security around the venue was tight with two roads and several footpaths closed off to the public.
The newlyweds even stopped to pose for pictures for fans outside the church before they drove away in a vintage Bentley car.