Rochelle Wiseman and Marvin Humes support children's charity

Pop couple Rochelle Wiseman and Marvin Humes paid a visit to Prime Minister David Cameron's official residence on Wednesday to support their favourite children's charity.

The JLS star has just returned home from his recent bachelor party in Miami, Florida ahead of his wedding to The Saturdays beauty later this year, and the pair turned out for an event at 10 Downing Street in aid of Rays of Sunshine, which grants wishes for sick youngsters.

In a series of posts on her Twitter.com page, Wiseman writes, "On my way to 10 Downing St with Marv, in support of RaysofSunshine very excited!"

She later updated fans by declaring, "Home from what was a very long day! Had great fun at Number 10."