Maybe some of you were already aware of this, but I was not. I ran across it the other evening. I think I'm going to download the beta and try it out. I hope this is a feature they roll out with the Serato Pro package in the near future. It lets you make acapella, instrumental, and other versions of songs with the click of a button. You can take out vocals, music, drums, bass, etc. I'm pretty Impressed.
Serato STEMS - YouTube
Serato STEMS - YouTube