According to Blabbermouth.net, Metallica and Lou Reed performed on Tuesday, November 8 on BBC's television show "Later... With Jools Holland".
The former Velvet Underground singer and the heavy metal titans appeared together on the program to promote their new collaborative album "Lulu", which was released last week.
Metallica and Reed performed the song "Iced Honey" off "Lulu" before joining forces for a rendition of The Velvet Underground classic "White Light/White Heat".
Check out video footage of the performance below.
"Lulu" is likely to sell between 12,000 and 15,000 copies in the United States in its first week of release, according to industry web site Hits Daily Double. The estimate was based on one-day sales reports compiled after the record arrived in stores on November 1 via Warner Bros. Records (one day earlier in the rest of the world through Universal Music).
"Lulu" is based on two plays by early 20th century German author Frank Wedekind about an amoral woman.
Both Metallica and Reed have downplayed the scathing reviews that the album has gotten, with Reed saying that Metallica fans are "threatening to shoot me". Metallica drummer Lars Ulrich defended the project, saying, "It's not for everyone, but I think it's a fantastic record."