The show, which features famous faces taking over the organisation of ordinary couples' nuptials, will have two three-episode runs in 2013.
Watch a trailer for the first series of Celebrity Wedding Planner below:
Previous series have featured stars such as Jedward, Kerry Katona, Apprentice star Stuart Baggs, Denise Welch, Louie Spence and Neighbours duo Ryan Moloney and Mark Little, splashing a budget of £12,000 in 21 days and helping organise a special day for a bride and groom.
Greg Barnett, Channel 5's commissioning editor for entertainment, daytime & soaps, said: "I'm delighted that the first two series of Celebrity Wedding Planner proved so popular with our viewers. Series 3 and 4 promises even more, drama, despair and hysteria with some very funny partnerships from our favourite TV shows."
The second series of the show averaged 1.1 million viewers (a 5.6% share).
Celebrity Wedding Planner returns in January on 2013.