A Perfect Circle is an American rock supergroup formed in 1999 by guitarist Billy Howerdel and Tool vocalist Maynard James Keenan. A Perfect Circle has released three albums: their debut Mer de Noms in 2000, a follow up, Thirteenth Step in 2003, and an album of radically re-worked cover songs titled Emotive in 2004. Shortly after Emotive's release, the band went into hiatus while Keenan returned to Tool and starting up solo work in the form of the band Puscifer, and Howerdel releasing a solo album, Keep Telling Myself It's Alright, under the moniker Ashes Divide. Band activity was sporadic in the coming years; the band reformed in 2010, and played live shows on and off between 2010 and 2013, but fell into inactivity after the release of their greatest hits album, Three Sixty, and a live album box set, A Perfect Circle Live: Featuring Stone and Echo in late 2013. However, in 2017, the band returned to touring and announced plans to record and release a fourth studio album under a new record label, BMG Rights Management, between late 2017 and early 2018.