The Mail Must Go Through is the 5th episode of the second season of The Kidsongs Television Show.
- Question Time
- Sing-Along with Billy
The Kidsongs Kids
- Christopher Aguilar
- Janessa Beth
- Christian Buenaventura
- Mark Humphrey II
- Megan Miyahira
- Hassan Nicholas
- Alexandra Palm
- Katie Polk
- Melanee Shale
- Janet Veyts
- Kevin Williamson, Jr.
- Debra Amaya
- "Purple People Eater" (Very Silly Songs)
- "Why Don't You Write Me?" (A Day with the Animals)
- "Candy Man" (What I Want to Be)
- "We're Gonna Get Wet" (Ride the Rollercoaster)
- "Michael Finnegan" (Very Silly Songs)
- "Mail Myself to You" (Very Silly Songs)
- "10 in the Bed " (Play Along Songs)
- "The Kickin' Mule" (If We Could Talk to the Animals)
- "The Old Hen" (If We Could Talk to the Animals)
- Billy is revealed not to be able to count well, though he improves at the end of the episode.
- Billy: Oh no! I'm never gonna learn this in time for my sing along. Can't I sing something else?
- Melanee: No, we're gonna stick with it 'til you know it. You can do it, Billy. I know you can.
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