90's song

[buffer girl]

This song was popular around the middle 90's. I posted this question once before and was given Peter Frampton as the answer which was not the right one. The words go somethink like "Oh I I I I ........I just want to be by your side girl just to let you know that........all I want to be is by your side.....
Who sings and what is the name?

[katylou]

a-ha = turn the lights down?