Kristin Chenoweth may have gushed about "Taylor the Latte Boy" on her 2005 solo album As I Am, but apparently Chenoweth doesn't have the same luck with baristas these days. On July 13, the Promises, Promises star stepped next door to the Ed Sullivan Theatre to chat with David Letterman on his Late Show. While there, she recounted a hilarious story about a rude Starbucks employee and her Twitter account. Letterman even playfully made fun of Chenoweth by attempting to mimic her signature high-pitched voice. Take a look!