Friday Music Flashback: Toto - "99" and "Africa"

I love my Sirius/XM 70's on 7. Today, they played a song I have not heard in years. I really don't get the song or what '99' has to do with anything (it supposedly has something to do with the movie THX 1138), but from 1979 - here is "99":

For those of you who don't really remember "99", here is Toto's biggest hit - from 1982, "Africa":