Impersonation is one of the lowest forms of comedy

....at least according to "neighbor Fred".
But occasionally, it's just damn hilarious.

Today on the ACS, Kevin Pollack stopped by to have a lengthy chat as several different characters.
http://adamcarolla.com/

Together, Carolla and Pollack did a hilarious bit about how crestfallen Christopher Walken might be upon learning there was no "Trader Joe" at the eponymously named store.

Pollack has his own podcast called, Talkin' Walkin, where he explores the daily life of Christopher Walken in a conversational style.

http://www.talkinwalkin.com/
http://www.kevinpollakschatshow.com/