Rocker Nikki Sixx is preparing to undergo surgery to fix a knee injury.
The bassist has been suffering from joint problems since hurting himself onstage during a Motley Crue show over the summer (11) and he previously shared photos of a doctor draining excess fluid from his kneecap with his Twitter.com followers.
He is now going under the knife to correct the problem once and for all.
In a tweet to fans he writes, "Knee surgery today. Looking forward to coming back stronger. #BionicSixx"