Dreamhouse - Stay (Just a Lil Bit Longer) - Original Video?

I came across this on a random CD-R being clutter cleared from my in-laws in Cairo, Egypt. I thought the song was catchy, and wondered who Dreamhouse is/was. When I did a search, a completely different, yet more polished, video came up for this song (where the female member of the band was Jules Tulley) So...What gives? What is the deal with this less polished, possibly original video? Who was the singer before Jules Tulles, that we see in this video? Did this mystery singer sing the original version of this song?

Update: One viewer identified the singer as Marlaine Gordon. Just google her name, and compare to the singer's profile around the 4:15 mark
Update 2: Another viewer wrote that it was common to sometimes create a different video for a different region, such as Asia, with a temp singer that may make the video more appealing in that region. Seems crazy to me, but then again, I wouldn't put it past the record companies to do something like that to make a few extra bucks...