Let's take a trip back to 1997, when Tina Fey was performing improv as part of Chicago's Second City. In this video, Fey imitates the calm, soothing tones of a WBEZ host (named Lynn Mahevic) who waxes poetic about the cultural significance of the banana and "its place in religion and history and art—its resonance in life. The banana," says Fey.
Bananas, very IMPT. Time writes:
The very funny 15-minute sketch is all improvised based on an audience member's suggestion of "banana." That alone should indicate how talented the performers are. Along with Fey, you'll notice fellow SNL alum Rachel Dratch, along with Scott Adsit, who played Pete Hornberger alongside Fey in 30 Rock.