Jane Curtin (b. 1947) is a comic actress who rose to fame as one of the original cast members of Saturday Night Live, and later starred on the sitcoms Kate and Allie and Third Rock from the Sun.
Curtin appeared in the star-studded version of Put Down the Duckie on Sesame Street. Although she didn't sing in the segment, an additional verse of her singing did appear during the end credits for Sesame Street, Special.
One of these appearances was included in Sesame Street All-Star 25th Birthday: Stars and Street Forever!