Little Celebs is story that features in The Dandy, the idea of the story is that it shows famous celebrities when they were younger. Little Celebs was introduced to the Dandy in issue 3508 (the first issue of a major revamp in October 2010), the first being Little Simon, the series is drawn by Nigel Parkinson.
So far these have been all the celebrities that have been made younger for the comic strip: It has recently became more of a sporadic strip, as it has only appeared 4 times in as many months, in issues 3549, 3550, 3556 and 3562.