I guess it depends on your definition of "washed up."

So, one of the teachers in the preschool where I'm working went to a George Michael concert on Sunday. She's been talking about it ever since.

Parent, to the George Michael Fan: I don't know why you wasted your time going to that concert. George Michael is just a washed-up singer.

Three-Year-Old: No he's not! He's a VERY DIRTY singer!