Martha Reader and The Vowelles: Pack

Martha Reader and The Vowelles: Pack is an installment in Martha Reader and The Vowelles series.

Plot
Martha Reader and The Vowelles singing the short "a" sound from their smash word "pack".

Lyrics
Martha Reader and The Vowelles/Lyrics

Missing Letter
p___

p a c  k

Adding Letters and Words
p + ack = pack

Only Appearance

 * Piggyback, Piggyback