THE VERY DEIFINTION OF GRUESOME TWOSOME: Last year, Duncan from Blue was given the job of MCing the Party in the Park, the annual charity push for the Princes Trust. He did quite well, and it's always a successful event, raising the sort of money that Prince Charles could only dream about - it's excellent to see someone without much themselves helping out others, isn't it? Anyway, this year, he's getting a co-presenter. Geri Halliwell. Apparently they have "great chemistry" together - yeah, so does sodium and water - and agents ("friends") hope it could lead to "bigger things" for the pair. The only problem is, of course, that Halliwell is totally devoid of talent, and has proven again and again that she doesn't work well in situations which require her to be both thinking and talking. It's also far from obvious why an event aimed at young teens is inviting Geri, 48, to play Cilla Black. One for the parents?