In a recent interview with Full Metal Jackie's nationally syndicated radio show, Anthrax guitarist Scott Ian spoke about ex-Anthrax vocalist John Bush's recent shows.

Bush showcased the music he helped create during his decade-long tenure as the frontman of the pioneering thrash metal band.

Ian stated that he and Bush are close friends and have been supportive of his decision to perform songs from his era with Anthrax.

The shows featured Bush performing songs spanning all four albums he recorded with the band: "Sound Of White Noise", "Stomp 442", "Volume 8: The Threat Is Real" and "We've Come For You All".

Joining Bush on stage were his CATEGORY 7 bandmates Phil Demmel (guitar), Mike Orlando (guitar) and Jason Bittner (drums), along with his longtime Anthrax partner and best friend Joey Vera on bass.

CATEGORY 7 also opened the show before returning as John's backing band for the Anthrax material.

This is not a new development, as Bush was asked by Eonmusic last September about the possibility of other Anthrax bandmembers joining him on stage to perform a few songs.

He responded that it would be up to his former bandmates whether or not they wanted to participate.

Ian had previously given his blessing for such an eventuality.

Ian and his wife Pearl Aday appeared on an episode of VH1's "That Metal Show" in March 2010, where the guests debated who was the best singer for Anthrax: Bush or Joey Belladonna.

Ian stated that he didn't need a bird, but rather a lion to sing Anthrax songs.

He also mentioned that he and his wife are huge fans of "The Greater Of Two Evils", a collection of re-recorded older Anthrax tunes with Bush on vocals.

This development comes amidst the band's continued history and changes in their vocalists over the years.

Anthrax has had a number of vocalists, including Belladonna, Neil Turbin, and Dan Nelson, each bringing their own style to the table.