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| Music by | Christopher Cerf |
| Lyrics by | Sara Compton |
| Date | 1989 |
| Publisher | Splotched Animal Music Co. Sesame Street Inc. |
| First | Episode 2743 |
An animated number 15 sings "How Hard It Is to Be 15" to a child who is trying to count from 1 to 20, but can't remember 15.