Help please - song stuck in my head for a while

Hey all,

I've got this song stuck in my head for a few weeks, as I'm sure most of you here has had at one point or another.

I've googled it and finally got to this site, and went through all songs suggested in this thread:
http://www.allthelyrics.com/forum/sh...ad.php?t=40374

But its not any of those songs(one or two came close, closest was Alphaville - big in japan), so some descriptions from me:
Has the word "Tonight" in it as in the post I've linked, but it could be a phrase like:
"Tonight... when I met you..." ("tonight" is bit 'stretched' out with a quick pause afterwards) or something along those lines, think it could be the start of the sentence/phrase (aphaville comes close to it where they sings "alright...."
Lady artist (could maybe be a remix but doubt it) (or high male voice like alhaville)
Think it could be from around 80's 90's
Electric/dance maybe...

(since i had it stuck in my head for a while I could have mixed up some details...)

Finally got it... it wasn't "Tonight" it was "Till now"... with it being stuck in my head so long I mixed up the words, no wonder I couldn't get it

The song is Alone by Heart.