Billy Corgan vs. Chris Cornell
BillCo went after Chris Cornell and Soundgarden this year, calling them a sellout reunion act only in it for the money. He also said Cornell criticized his Smashing Pumpkins resurrection in 2007 as not being ‘legitimate’ and he did not forget this. Cornell responded sarcastically saying that Corgan owed him his 40 grand paycheck for the Singles soundtrack since he got the Pumpkins their spot on the soundtrack.

Billy Corgan vs. James Iha
Corgan and Iha have been at it for over a decade now, with the saga beginning when the Pumpkins initially broke up in 2000. Sometime after this Iha began filing lawsuits against BillCo, which has caused him to refer to Iha as a “piece of shit” and one of the worst human beings he has ever met. Iha responded that the remarks sounded bitter, but BillCo has been landing the punches in most of this fight.

Billy Corgan vs. Stephen Malkmus
The longest running BillCo feud, dating back to 1994 when Stephen Malkmus mocked the Smashing Pumpkins in the Pavement song “Range Life.” Corgan has continued to call out Pavement and Malkmus for being hypocrites and doing a cash grab reunion tour with no new material.

Billy Corgan vs. Hipsters
BillCo declared war on the “bearded army of bloggers” in 2012, spending hours lecturing people at SXSW on how hipsters have killed rock and roll. Corgan’s feud with hipsters has definitely been the most popular among fans, who remain divided when it comes to the Cornell/Iha feuds.

Scott Weiland vs. Slash
After a one off reunion set in Los Angeles back in January, Scott Weiland saw dollar signs and began to use to the press to try and get a Velvet Revolver reunion going. Weiland claimed in May that the band were already back together writing a new album with a tour planned for later in the year. Slash responded saying Weiland is “out of his mind” and that he never wants to play with him again. Weiland resumed the reunion talk at an even stronger pace following Stone Temple Pilots’ summer tour, saying that a reunion is inevitable. Slash fired back claiming that Weiland is trying to coax him into a Velvet Revolver reunion because he was fired from Stone Temple Pilots, but yet again has said that he will not play with Weiland.

Perry Farrell vs. Eric Avery
This feud began brewing when bassist Eric Avery left Jane’s Addiction again in 2010.  Avery did a tell all interview later that year with Jane’s Addiction fansite Xiola.org, ripping Farrell for his lack of preparation and unprofessional behavior during recording sessions with Trent Reznor in 2009 and accusing him of being an egomaniac control freak who half assed the Jane’s Addiction reunion.  Perry Farrell first responded in the Jane’s Addiction track “End to the Lies” on the 2011 album The Great Escape Artist, referring to Avery as the ‘foreskin’ of Jane’s Addiction while he was ‘the real head.’  Farrell then claimed this past August in an interview regarding recording the new Jane’s Addiction album, “The bass player wanted to do festivals only and cash in. I was of a different opinion.” This was in contrast to Avery’s claim that his first priority when the band reunited in 2008 was to record new material.

Courtney Love vs. Dave Grohl
Courtney Love accused Dave Grohl of sleeping with Frances Bean Cobain, she said she would “shoot him dead.” She also claimed that Grohl is obsessed with her and Kurt Cobain, accusing Grohl of naming his daughter Violet after the Hole song and making Taylor Hawkins the drummer of Foo Fighters because

Courtney Love vs. Frances Bean Cobain
Courtney accused her own daughter of having sex with Dave Grohl on her Twitter page. Frances responded “Twitter should ban my mother.”

Courtney Love vs. Krist Novoselic
Courtney went after the surviving members of Nirvana reuniting a couple of weeks ago with Paul McCartney to perform the new track “Cut Me Some Slack,” calling the performance bad. She in particular went after Krist Novoselic, the co-founder of Nirvana and one of her late husband’s best friends. Love claimed that Novoselic was never know for playing bass well, and that Paul McCartney “better get earmuffs for the bass playing.”