Flo (Word Play)

From Muppet Wiki

Flo is a stagehand working backstage in the 2002 Sesame Street direct-to-video special Bert & Ernie's Word Play. Flo and Mo used to be part of a harmonizing trio of singers, until the third member with the high voice moved off to Florida. When Prairie Dawn needs a closing act for the show, they incorporate Elmo into their finale, and sing "Need to Read."