Motorhead

'A salute to my friend and inspiration Mr. Lemmy Kilmister. Without him, there would be NO Metallica,' Hetfield wrote on Instagram.

Fans were able to watch the service at the Forest Lawn Memorial Cemetery in LA via the band's Youtube channel.

The Canadian pop star has become the first artist to hold the number 1, 2 and 3 singles in the UK charts at the same time.