Metallica will release new single All Nightmare Long as a digital download on December 15.

Its the second song to be taken from their massive selling Death Magnetic album which reached number one in 32 different countries!

The group- headed by Lars Ulrich and James Hetfield- have also revealed that their recent 02 Arena show raised over 80,000 for charity Youth Music.

Metallica recently announced live dates in the UK for February next year- they sold out in just a few hours.

8 minute opus All Nightmare Long is only being released as a digital download but it will come packaged with the video as well.