This song sounds like it came out in the 80's. I always hear this song at my job on the radio mostly every other day. I like the song. Anybody knows who sang it? The hook goes you're still the one, you're still the one, we're still having fun & you're still the one.

It was from the '70s

Orleans is the band.

They also did "Dance With Me" which you would recognize:

Dance with me, I want to be your parnter
Can't you see, the music has just started
Night is falling and I am calling
Dance with me