Is Dave Grohl featured on Korn's new album?

In the last 30 – 40 hours, music world has been electrified by a picture proving that Dave Grohl paid Korn a visit in the studio while recording their latest effort “Serenity of Suffering“. The photo was posted by the band’s drummer Ray Luzier on his Instagram profile captioned:

“That one time when Grohl stopped by our studio for #serenityofsuffering sessions. Huge thanks to #nickraskulinecz for making our new record so awesome!”