VIDEO: Kristen Wiig plays clueless Peyton Manning on 'Fallon'

Kristen Wiig is at her best when she has no idea what she's doing.

The former "Saturday Night Live" star has a history of appearing as a guest on "The Tonight Show Starring Jimmy Fallon" in character as a male celebrity whom she doesn't know much about. This time, Wiig was Peyton Manning.

It turns out Manning's memories of the Super Bowl are pretty hazy: