Metal mavens Megadeth and Metallica haven’t always been on the best of terms, despite growing up in the same tight-knit metal community, undoubtedly sharing some of the same obsessed fans over the years and maybe even dipping into the same pool of groupies back in the day.

Obviously, a lot of the tension had to do with Megadeth frontman Dave Mustaine being kicked out of Metallica during their early days. Now, things seem to be going better between the two metal acts, as they are both on the bill of the series of 'Big 4' shows that also feature Anthrax and Slayer.

But the recent kinship may not end there. Mustaine is now pushing for a supergroup featuring himself and Megadeth bassist David Ellefson paired with Metallica frontman James Hetfield and drummer Lars Ulrich.

"I've talked to Lars and James about me and David doing a supergroup record with Lars and James,” Mustaine revealed in a recent radio station interview. “Well, James never said 'no,' but it's still kind of out there in the air. I'm gonna keep hammering on him. It's on my bucket list."

That would indeed be a dramatic turn of events. When Mustaine was booted out of Metallica way back in the 1983 for excessive partying, he promptly formed Megadeth with his sights clearly set on taking down his former bandmates. "After getting fired from Metallica, all I remember is that I wanted blood -- theirs,” Mustaine later recalled of his band's formation. “I wanted to be faster and heavier than them."

In other news, Megadeth just announced a Nov. 1 release date for their upcoming 13th album, 'TH1RT3EN.' Prior to the release, 'Deth and 'Tallica will perform at the next stop of the 'Big 4' tour Sept. 14 at New York's Yankee Stadium.