"Amazing service for Lem the other day, everyone there spoke beautifully," writes Campbell in a series of tweets. "I really wanted to attend but I wasn't able to make it.

"Unfortunately, I was advised on doctor's orders not to fly on such a long haul flight due to my recent hospitalization. I'm doing well though and I managed to watch the whole service via the online stream, so thanks to the Motorhead team for organizing that."

A band member since 1984, Campbell was hospitalized for an unspecified condition in late November, prompting the cancellation of sold-out 40th anniversary tour shows in Berlin and Hamburg, Germany and Aarhus, Denmark.

Former Motorhead guitarist Fast Eddie Clarke - a member from 1976 to 1982 - updated fans on his absence via his Facebook page. "I have been a bit quiet lately," explains Clarke. "I was unable to get a visa to go to Lemmy's funeral. I have past sins, which means it takes longer for me to get a visa and with being Christmas, there wasn't enough time.