The details have been coming out about one of the biggest celebrity weddings of the year – the one which will marry British boy bands with British girl bands – Marvin from JLS and Rochelle from The Saturdays. Now Marvin is safely back from his stag do in Vegas, we think that Rochelle is breathing a sigh of relief and friends have been talking about what their plans are for the big day. It comes in quite handy them both being in bands, as it means they have friends in the industry who they can call favours on to perform. They plan to have Tulisa do a song – and also Pixie Lott and Olly Murs – we’re not too sure in what order though. Surely the 3 of them will be looking to see who is singing at the best part of the day – and they can see who is classed as the best friend out of them all. The couple have requested that no children attend the event and they have also given out strict instructions for dresscode – which is quite unusual. All the men have to wear black tie and all the women have to wear black cocktail dresses – which also isn’t very summery considering that the wedding is in July. The couple also made the invitations match the dresscode – they were black and white and had a diamante in the centre. The bridesmaids dresses are being kept quite secret, but we do know that Rochelle has done a deal with a designer label so that all the girls can wear the same pink tracksuits as they get ready. And the one big thing which may be stressing the guests out – what to buy the couple – well, they needed worry. They have asked for donations to charity rather than presents – so now they just have to worry about how much they give.