please,anybody knows who sing this song????

the lyrics says :where do we go,how do we know....,its a ballad,a duet i believe from 1984-1985.
Please anybody may help me to identify this song?
Many thanks.

There's a song called "Hide Away" with those lyrics. However, the only artist I can find that recorded that song is Hilary Duff and she is too young for a 1984 version.