Just a concert?  I know Leigh Nash has been making music under the name Fauxilage. One of their songs appeared on the Moonlight episode Dr. Feelgood.

It's official now: Sixpence None the Richer is reuniting! The initial tid bit of news released said they would get back together for at least one concert. Lead singer Leigh Nash has finally announced that the band is actually reuniting. The have a tour planned, are working on an EP, and in the words of Nash herself, "We realized we were on the same page and decided to make Sixpence None the Richer records for the next 2,000 to 3,000 years!"

The news keeps getting better. Sixpense has released a new song:

My Dear Machine

The song is much more rocky and less folksy than most of their stuff. Maybe it's an indication of a new direction they're taking with their style.