These clips were going to be part of a "holiday gift to you" post this past December, but never made it that far.
One of those uniquely Japanese pop culture phenomena that usually escapes notice over here is the musical careers of anime voice actors. Some of them will capitalize on the fame of the show to boost other aspects of their performing careers.
The women who voiced the parts in Wedding Peach also performed as a group named FURIL. The music is pretty typical Japanese pop of the period, but it's still fun and kind of cute. This vid has the WP characters on the left and the FURIL singers on the right both doing the same song.
I love this one, largely because they all appear in the WP wedding dresses!
More about Wedding Peach.