Closest I've ever got was when I saw Boyzone outside Top of the Pops once and they filmed us. This was then shown as part of a day in the life thingy a week later on the Big Breakfast and luckily you can only see me as they zoom past in their car.
My sister has danced with the Wanted on Strictly and was one Gabz backing singers on Britains Got Talent the other week. She's also an extra in a film coming out next summer.
Oh and my auntie was on Blankety Blank in the 80's, shes still got the chequebook and pen