This is easy. A celebrity is named (well known). The next person names another whose first name begins with the first letter of the last name of the last celebrity named.
example: I say Elvis Presly, you say Peter Falk, next person says Fiona Apple, the next Adam West ...get it? If you play this camping, you try not to repeat any names, but may not be practical here, so just have fun. Oh yeah, one name names (Cher, Madonna...)you can use in any way.
I'll start.
Elvis Presly