Pearl is a brown monster with a tall head and a pink nose. She lives in a cave with Deena, whom she takes care of. Pearl likes peace and quiet, which she doesn't always find due to Deena's endless energy.
The monster duo Deena and Pearl debuted in Season 12 of Sesame Street. They virtually vanished from the show after that season, although they both reappeared in the wedding finale of The Muppets Take Manhattan.
The Pearl puppet was later used as a utility puppet in a variety of sketches, removing her orange tuft of hair.