There are 5,319 songs on my iTunes, this is one of them.
I'm not sure how I first The Roches. They are a sister act (Margaret, Terre and Suzzy) with wonderful harmonies. There main career stretches from 1979 to 1995 and I have 5 of the 10 albums they released during that time. They disbanded as a trio in 1995, after their father died, but released a new CD in 2007 (which I haven't heard). According to Wikipedia they were never real popular and don't get much air play. I probably heard them on University of Penn's radio station (WXPN) when I used to live in Philadelphia. Hopefully you'll like them as much as I do.
This is from their 5th album, "Speak" which was released in 1989.