Question: Them Crooked Vultures and The Rockfords, are both bands for which music type?
Context: The Rockfords were an American rock band formed in Seattle, Washington, in 1999 by Carrie Akre, Chris Friel, and Danny Newcomb of Goodness, Mike McCready of Pearl Jam, and Rick Friel of Jodie Watts.  The group served as a side project for its members, who had already tasted success with their respective bands. Them Crooked Vultures is the debut studio album by the rock supergroup Them Crooked Vultures that was released on November 16, 2009.  The first single from the album, "New Fang", was released on October 26, 2009, followed by "Mind Eraser, No Chaser" on November 3.  The album debuted at number 12 on the "Billboard" 200, selling 70,000 units in the US in its first week. Alain Johannes Moschulski (born May 2, 1962) is a Chilean-American multi-instrumentalist and vocalist, whose primary instruments are guitar and drums.  He is a founding member of several bands, including the alternative rock group Eleven, and has been involved with acts such as hard rock band Queens of the Stone Age, Them Crooked Vultures, Chris Cornell, Arctic Monkeys, Mark Lanegan, and the Desert Sessions, both as a musician and as a producer. "New Fang" is the debut single by Los Angeles-based rock supergroup Them Crooked Vultures.  It was the first track the band worked on.  "New Fang" was released as the first single from the band's self-titled debut album (2009). The Deserve the Future Tour was a worldwide concert tour by American rock supergroup Them Crooked Vultures.  The tour began on August 9, 2009, and ran until July 30, 2010, after a run of shows in Japan, and visited North America, Europe and Oceania.  The tour was in support of the band's debut album. "Bubbles" is the fifth single taken from Scottish rock band Biffy Clyro's fifth studio album, "Only Revolutions".  Josh Homme from Queens of the Stone Age, Kyuss and Them Crooked Vultures provides additional lead guitar in the song.  Despite being one of the lower charting songs from the album (reaching #34 on the UK singles chart), it has spent more weeks in the top 100 than any other Biffy Clyro song. Jermaine Rogers (born October 14, 1972 in Houston, Texas) is an artist and designer in the field of modern rock/pop poster art, also known as 'gigposter' art, as well as serigraph and fine art production.  Rogers began his career in Houston, Texas as a member of the 1990s Texas poster-art scene, which featured fellow artists Frank Kozik, Uncle Charlie, and Lindsey Kuhn.  Since 1995, Rogers has designed posters for a wide variety of musical acts, including Queens Of The Stone Age, Neil Young, Tool, Deftones, Radiohead, Tori Amos, David Bowie, Morrissey, The Cure, Mars Volta, Public Enemy, Them Crooked Vultures, and many others.  His work is viewed as influential in the modern resurgence of the art form, "continuously crafting images that push boundaries, whether social, cultural, or aesthetic".  His work is cataloged among the permanent collections of the Rock And Roll Hall Of Fame in Cleveland, Ohio as well as the Experience Music Project in Seattle, Washington.  His work has been featured in various media, including print, television, and feature film. Them Crooked Vultures is a rock supergroup formed in Los Angeles in 2009 by John Paul Jones (former member of Led Zeppelin) on bass and keyboards, Dave Grohl (of Foo Fighters and formerly of Nirvana) on drums and backing vocals, and Josh Homme (of Queens of the Stone Age, Eagles of Death Metal and formerly of Kyuss) on guitar and vocals.  The group also includes guitarist Alain Johannes during live performances.  The band began recording in February 2009, and performed their first gig on August 9, 2009, in Chicago, followed by a European debut on August 19.  On October 1 the group embarked on a worldwide tour titled "Deserve the Future" with dates going into 2010.  The band's first single "New Fang" was released in October 2009, followed by the group's self-titled debut album the following month, debuting at number 12 on the "Billboard" 200.  The group won the 2011 Grammy Award for Best Hard Rock Performance for "New Fang". No More Censorship is an album by Scream released in 1988 through RAS Records (RAS 4001).  It is the first Scream album to feature Dave Grohl on drums, who went to be a part of many successful bands, most notably Nirvana and Them Crooked Vultures as a drummer, and Foo Fighters as guitarist and vocalist. "Mind Eraser, No Chaser" is the second single released by rock supergroup Them Crooked Vultures.  "Mind Eraser, No Chaser" was released on November 3, 2009 as the second single from the band's self-titled debut album (2009).  It was released as iTunes's Single Of The Week as part of promotion for their debut album.  The song features vocals from both guitarist Josh Homme and drummer Dave Grohl.
Answer: rock