I think by this time around the turn of the century, Puffy's singing career was starting to become superseded by their one as television personalities, although they have continued to release singles as recently as last year. Still, I took notice of their April 1999 9th single, "Nichiyoubi no Musume"(Sunday Girls) because Tamio Okuda（奥田民生）, who wrote and composed the song, crafted something that sounded like a mix between a Shibuya-kei tune and the theme from the old 70s US sitcom "Three's Company". And of course, it's always fun seeing Ami and Yumi pull off their dance moves anywhere and anytime. The song had already been slated for a Yamaha moped (the Vino) commercial, so Okuda incorporated the name into the lyrics and I believe the ladies were riding them in the video.
And for a bit of comparison, here's "Three's Company".