This has got to be one of the silliest songs I heard. I especially like the bass of this track. It’s rather “rockish” in a childish way.
The song is called “Okashi Tsukette Okassui”. [I searched and found several similar Romanized names like "Okashi Tsukette Okkasi" and "Okashi Tsukette Okassi".] I can’t find the title translation for this song so I translated the title myself to be something like “Making Sweets: Strange” or something. I don’t learn Japanese so I may be wrong. Can someone tell me the correct translation of the title?
MiniMoni members – Mari Yaguchi, Nozomi Tsuji, Ai Kago and Mika Todd – starred in the movie – MoniMoni The Movie: The Great Cake Adventure a couple of years back. I first heard that song from this film.
The movie’s about MiniMoni members running a confectionery that does wonderful cakes. Just hours before their shop’s anniversary, an evil queen sought to destroy the cakes they made. Just when things go bad, their sizes got reduced. Perhaps it wasn’t such a bad thing after all.
I have encoded 56sec sample in WMA file proprietary (Windows Media Audio 9; 48 kbps, 44 kHz, stereo 2-pass CBR) for you people. This is the best quality I have encoded again, at the expense of file sizes again. 
Download the sample from here (355 KB). [In Internet Explorer, right click on the link and choose the option "Save Target As...". Download it quick, as I'll remove it on February 23.]
Okashi Tsukutte Okassui
[Making Sweets: Strange]
Oide yo! Oide yo! Oide yo! Oide yo!
[Come on! Come on! Come on! Come on!]
Oide yo! Oide yo! Oide yo! Oide yo!
[Come on! Come on! Come on! Come on!]
Issho ni okashi!
[Together: Sweets!]
Issho wa okassui~!
[Together: Strange~!]
Okashi wa itsudemo SHAI dakara
[Because sweets are always SHY]
Hotondo kaiwa mo nai keredo
[They don't really have very much to say]
Okashi fushigi!
[Sweets wondrous!]
Okashi fushigi!
[Sweets wondrous!]
Okashi fushigi!
[Sweets wondrous!]
Okassui~!
[So strange~!]
Okashi wa itsudemo mirokuteki!
[Sweets are always fascinating!]
Shotaimenna noni oishisou
[They look so good at just the first glance]
Okashi fushigi!
[Sweets wondrous!]
Okashi fushigi!
[Sweets wondrous!]
Okashi fushigi!
[Sweets wondrous!]
Okassui~!
[So strange~!]Source: The movie itself
After I watched the film, the words “okashi fushigi” still rings in my mind. I watch it last time by the way. So it proofs how addictive this tune is to me. Okassui, isn’t it?
Here are some still shots from the movie itself. I used to host it in another location, but I have consolidated all the images into this host. [Updated: May 2007]
Looks strangely like Teletubby land.
Mari Yaguchi holding a cake or keiki as they call.
MiniMoni’s new Ai Takahashi.
The thing about this movie is that it seems to be a satire of the actual MiniMoni group. In the end of the movie, Yaguchi left the confectionery she started and appointed Mika Todd to be the manager. Takahashi then joined the lovely cake-making crew. Yaguchi left to take care of the 4 kids as part of the story.
Yaguchi indeed left MiniMoni. With the addition of Takahashi and a new leader, MiniMoni also changed their styles. Yaguchi went on to manage Hello! Project Kids.
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Tags: ai kago, japan, japanese lyrics, lyrics, mari yaguchi, mika todd, minimoni, morning musume, movies, music, nozomi tsuji