Sunday's ABC special, during which Walters will be seen interviewing Oscar nominees and past winners, is to be her last.
She appeared on "Late Show" Wednesday and gave 10 reasons why that is. They are --
10. Everyone I want to interview is in rehab.
9. Tired of fending off George Clooney's clumsy advances.
8. I've forgotten how to make people cry.
7. Don't want to do any more of these lame Top 10 lists.
6. I knew it was time to stop when I was asked to interview a blue guy from "Avatar."
5. I've done it for 29 years -- what more do you people want from me?
4. I just got a gig as Naomi Campbell's assistant.
3. I've learned when a celebrity says they have an interesting story, they don't.
2. I was pushed out by Jay Leno.
1. I'll do another special when Dave hosts the Academy Awards again.
Copyright 2010 United Press International, Inc. (UPI).