As a musician, it's only natural that that I'd gravitate towards jingles and songs to help me study Japanese. This had me wondering, "Is there something like Sesame Street in Japanese?" I didn't get far in my search. Once I found GenkiJapan.net last year, I called off my search. These earworms truly stick with you.I'm at the point that I launch into singing "10 Little Samurai" when trying to remember the counters for people and sound like an anime character when rattling off the colours in Japanese.
But don't take my word for it. Check out these free video study aids for yourself:
"10 Little Samurai"
"Colors" ("Colours")
There's plenty more video tutorials on Genki Japan.