Conversation so far:
What happened to Jordan Peele in the 2000's?
Jordan Peele's breakout role came in 2003 when he was hired as a cast member on the Fox sketch comedy series Mad TV.
What did Jordan Peele do on Mad Tv?
Jordan Peele performed celebrity impersonations.

Question: Who did he impersonate?
Self-contained rewrite: Who did Jordan Peele impersonate on Mad Tv?