Rochelle Wiseman and Marvin Humes have booked the lineup of T4 On The Beach to sing at their wedding.
Olly Murs, Pixie Lott and Tulisa will each 'entertain' at the do in July.
What a way to celebrate the most special day of your life.
Guests have all been asked to attend in strict black tie dress code — even you Tulisa — and to make a charitable donation to the JLS Foundation instead of bringing gifts, which is nice.