05/03/2012 05:54 am ET | Updated May 03, 2012

Jimmy Fallon And Amy Poehler Do TV Impressions On 'Late Night' (VIDEO)

"Saturday Night Live" alumni Amy Poehler and Jimmy Fallon were reunited on "Late Night" (Weeknights, 12:37 a.m. ET on NBC) Wednesday, and to celebrate the occasion they showed off their improv chops.

The pair gave each other five seconds to do celebrity impressions or die. Fallon's John Goodman was ... not so great, but Poehler's Courteney Cox was hilarious.

"Late Night With Jimmy Fallon" airs weeknights at 12:37 a.m. ET on NBC.

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