The pairing are offering fans the chance to listen to their collaborative album Lulu 11 days ahead of its official release on October 31.
The album - available via loureedmetallica.com - was inspired by German playwright Frank Wedekind's play of the same name and will contain ten new tracks from the musical collective.
Metallica and Reed previously unveiled the first official trailer for the record and described the album as "an exciting ride to be on".
Reed added that the new material does "more than it dared to dream of".
An advertisement for the record was recently banned from being displayed on the London Underground, as the font of the album title looked too much like graffiti.
> Lou Reed and Metallica unveil new song 'The View' - listen
Watch the trailer for Lou Reed and Metallica's new album Lulu below: