S1·E12 Let's Dance
Aired January 8, 1999
Synopsis
Mary-Kate and Ashley prepare for their first school dance. Mary-Kate wants to dance with Jeremy, but he tells her that he only knows how to swing dance. Carrie teaches Mary-Kate how to swing dance. At the dance, however, they learn that Jeremy doesn't know how to swing dance at all - he lied to her because he doesn't know how to dance.