In a statement from the band on social media.

Mushrooms, angels, dust & fire!
We have a new Murk! We found her on our attic and we decided to keep her! Welcome to the band Kim Mercken! She is actually Yolanda’s daughter so we’re sure her level of nuttiness and vocal quality fits perfect in a Murkified environment. Marie’s and Kim’s voices fit very well together! It has a range from very fluffy and cuddly to tornado alarm on Elm Street. We have to exploit that!

Thanks to Dauwdruppel Josee for the photo!