Metallica & Black Sabbath Team Up For Record Store Day

Metallica & Black Sabbath have teamed up to give April's Record Store Day a big boost.

The heavy rock supergroups will feature on a limited edition double-A-side, which will be released to coincide with the event on 17 April.

According to NME.com, the 12-inch single will feature the UNKLE remix of Metallica's Frantic and a new version of Black Sabbath anthem Paranoid.

Only 1,000 copies of the special single will be released.