S2·E16 My Two Left Feet (a.k.a. Gotta Dance)

When Nikki finds out that her obnoxious landlords, Ken and Alice Gillespie, are going to compete in a ballroom dancing competition, she insists that Dwight join her in entering the contest. Soon, Mary and Jupiter get involved as well. However, through a series of mishaps, Nikki teams with Ken, and Mary rejects Jupiter for a handsome Latino, Antonio. Seeking revenge, Dwight and Jupiter compete against the others and almost win. Nikki prevails but learns that her overcompetitiveness almost ruined the fun of the evening.