Kristen Wiig appeared on Late Show last night, where she talked about filming among hippies in Asheville, North Carolina, and nerded out with Letterman about MacGruber, a movie he loves.

"What a tremendous—what a delightful—MacGruber, oh my god!"

Wiig also talked about her time spent in a sensory deprivation tank in Asheville, and provided a helpful tip for waking up if the sensory deprivation causes you to fall asleep:

[h/t Splitsider]