Dutch mega stars Within Temptation have posted the following information about their forthcoming single:

"First of all, we can announce that our new single will be titled 'What Have You Done'. In January, you'll be able to hear and see it on your local radio- and TV-station. A couple of weeks later, you'll be able to buy the single online or through your local record store. We're proud to tell you that this single features Keith Caputo as a guest singer. You might know him from his solo-work or as a singer of Life Of Agony, we feel that he's done a great job with this song, and we hope you'll feel the same way."