Keith Caputo, singer with soon-to-be-defunct metal outfit Life of Agony, has revealed he is to undergo gender reassignment surgery.

Caputo, who is currently in the midst of the band's farewell tour, took to Twitter to make the revelation. He tweeted, "M2F transsexuals like me are the women who give up male privilege for femininity! Threaten the patriarchy!"

In another tweet, the frontman responded to a fan's question surrounding the demise of Life of Agony by writing, "LOA has already gone in2 isolation & it's got nothin 2 do w me transitioning. my boys love me regardless of my life choices!"

The news will probably not come as a great surprise to fans, as the 37-year-old singer has been referring to himself as "her" when posting on his official website for some time.

With Life of Agony disbanding, Caputo will turn his attentions back to his solo career. Already with four solo albums under his belt, the singer will be touring the UK in the autumn.

Watch the Video for Keith Caputo's 'Nothing to Lose (Live)'