Metallica just wrapped up a grueling two-year tour behind 2008's
Death Magnetic, but in May they'll head back into the studio to begin a new project. "We want to record it in two weeks,"
guitarist Kirk Hammett tells
Rolling Stone. "We had planned on doing it in March, but we pushed it back to May. I don't want to give too much away, but it's not really 100 percent a
Metallica record. It's a recording project, let's put it that way.