I think Kelly would be an unlikely Punk'd candidate...she doesn't spend much time in LA where the show is based, and she just isn't part of the young Hollywood scene where Ashton and his gang have lots of connections.

Candid Kelly would be sweet though.

Kelly hosting SNL...now there's an idea. As down as she is on the whole acting thing she was very good in her bits on the show before, and it seems like she would have fun with it.