Heavy rockers Metallica have recorded an album with music veteran Lou Reed.
The band performed with the Perfect Day hit-maker during the Rock and Roll Hall of Fame 25th anniversary concerts in New York City in 2009, and the collaboration prompted them to start planning a project together.
The rockers have now confirmed they have spent the last few months working with Reed at their studio in San Francisco, California and they completed recording a 10-track album with the former Velvet Underground star last week.
A statement from Metallic reads, "We have just completed recording a full-length album that is a collaboration with none other than the legendary Lou Reed.
"Ever since we had the pleasure of performing with Lou... we have been kicking around the idea of making a record together. Some of you astute Bay Area residents may have picked up news of recent Lou Reed sightings in the greater San Francisco area and we have indeed been working at our home studio at HQ on and off over the last few months.
"In what would be lightning speed for a Metallica related project, we recorded 10 songs during this time and while at this moment we're not exactly sure when you'll hear it, we're beyond excited to share with you that the recording sessions wrapped up last week."