Episode 50 of "Spin City"
s3e02 There's Something About Heidi
Title: There's Something About Heidi
Original Air Date: 09/29/1998 on ABC
Plot Outline:
After Mike's picture with model Heidi Klum is in the tabloids, people assume he's dating her. But, he soon is after she asks him out. As a result, Nikki reveals to Carter that she has a secret crush on Mike. And The Mayor can't stop laughing at VERY inappropriate times.