This song has always been a guilty pleasure of mine.

Now I have been able to combine it with another guilty pleasure of mine: seeing Twilight Sparkle cheer up.

Song: Shin-Chan Ending Theme (English)
Ponies: Awesome

Lyrics, according to the Internet (special thanks to Al Gore for the Internet):

Woke up late this mornin'
a storm was really rollin'
Frogs and Dogs are raining from the sky!
Everything seems awkward to me,
nothing's just as it should be
If this keeps on I'm sure I won't get by

But then I close my eyes and try to smile
I know things are bad and getting worse!
But after all this I can rest a while
and then I'll party party

Party Party Join us Join us
Party Party Join us Join us
Party Party Join us Join us
Shake your tail and you can
Party Party Join us Join us
Party Party Join us Join us
Party Party Join us Join us
Shake your blues away

(yo! regge vacation mon!)

This party's shakin and it ain't just shakin me here
I see that smile you're grinnin ear to ear
sing this song and you should really sing it clear
Just sing along with us

Party Party Join us Join us
Party Party Join us Join us
Party Party Join us Join us
Shake your tail and you can
Party Party (ain't that the truth?)
Party (grand old party it is)
Party Party