Problem: Background: John Charles Wiltshire-Butler (born 1 April 1975), known professionally as John Butler, is an Australian singer, songwriter, and music producer. He is the front man for the John Butler Trio, a roots and jam band, which formed in Fremantle, Western Australia in 1998. The John Butler Trio has recorded five studio albums including three that have reached number one on the Australian charts: Sunrise Over Sea, Grand National and April Uprising. His recordings and live performances have met with critical praise and have garnered awards from the Australian Performing Right Association and Australian Recording Industry Association.
Context: On 29 June, Butler gave a live solo performance at Twist and Shout Records in Denver, Colorado, which was released in January 2008 as an eight-track EP, One Small Step, with A$1 from each record sold being donated to Oxfam's "Close the Gap" campaign. One Small Step was Butler's first official solo release. At the ARIA Music Awards of 2007, Butler performed "Funky Tonight" in a collaboration with fellow Australian musician Keith Urban. Radio station, Triple J's listeners voted Grand National their favourite album for 2007.  "Ocean" garnered John Butler newfound success when recordings of live performances of the song went viral on the internet. Butler made a cameo appearance in 2009 Australian film, In Her Skin, as a busker. The film's soundtrack featured three songs by the John Butler Trio, "Ocean", "Caroline" and "What You Want".  In July 2009, Butler undertook a solo overseas tour commencing in North America, where he played at the Montreal Jazz Festival, the Rothbury Music Festival in Michigan and The Mile High Music Festival in Denver. In North America he sold out headline shows in Toronto and Los Angeles. In Europe, Butler played at the Folies Bergere in Paris and London's Union Chapel. He also performed at Cannes, Amsterdam and Antwerp.  Upon his return in August, he took part in the Cannot Buy My Soul concert at the Queensland Music Festival. Butler performed alongside other local musicians (including Paul Kelly, Missy Higgins, Troy Cassar-Daley, Clare Bowditch, Tex Perkins and Bernard Fanning) reinterpreting the catalogue of indigenous Australian musician Kev Carmody. Butler's interpretation of the song, "Thou Shalt Not Steal", was included on the compilation album, and later was featured on the iTunes Deluxe album of Grand National. Butler participated at the Garma Festival of Traditional Cultures located in Northeast Arnhem Land in the Northern Territory.
Question: Did he ever collaborate with anyone of note?
Answer: Butler performed alongside other local musicians (including Paul Kelly, Missy Higgins, Troy Cassar-Daley, Clare Bowditch, Tex Perkins and Bernard Fanning

Problem: Background: Nicholas Edward Cave  (born 22 September 1957) is an Australian musician, singer-songwriter, author, screenwriter, composer and occasional film actor, best known as the frontman of the rock band Nick Cave and the Bad Seeds. Cave's music is generally characterised by emotional intensity, a wide variety of influences, and lyrical obsessions with death, religion, love and violence. Born and raised in rural Victoria, Cave studied art before turning to music in the 1970s. As frontman of the Boys Next Door (later renamed the Birthday Party), he became a central figure in Melbourne's burgeoning post-punk scene.
Context: Cave released his first book, King Ink, in 1988. It is a collection of lyrics and plays, including collaborations with Lydia Lunch. In 1997, he followed up with King Ink II, containing lyrics, poems, and the transcript of a radio essay he did for the BBC in July 1996, "The Flesh Made Word," discussing in biographical format his relationship with Christianity.  While he was based in West Berlin, Cave started working on what was to become his debut novel, And the Ass Saw the Angel (1989). Significant crossover is evident between the themes in the book and the lyrics Cave wrote in the late stages of the Birthday Party and the early stage of his solo career. "Swampland", from Mutiny, in particular, uses the same linguistic stylings ('mah' for 'my', for instance) and some of the same themes (the narrator being haunted by the memory of a girl called Lucy, being hunted like an animal, approaching death and execution). On 21 January 2008, a special edition of Cave's novel And the Ass Saw the Angel was released. Cave's second novel The Death of Bunny Munro was published on 8 September 2009 by Harper Collins books. Telling the story of a sex-addicted salesman, it was also released as a binaural audio-book produced by British Artists Iain Forsyth and Jane Pollard and an iPhone app. The book originally started as a screenplay Cave was going to write for John Hillcoat.  Aside from movie soundtracks, Cave also wrote the screenplays for Hillcoat's The Proposition in 2005, and Lawless (based on the novel by Matt Bondurant) in 2011.  As proof of his interest in scripture, so evident in his lyrics and his prose writing, Cave wrote the foreword to a Canongate publication of the Gospel according to Mark, published in the UK in 1998. The American edition of the same book (published by Grove Press) contains a foreword by the noted American writer Barry Hannah.  Cave is a contributor to a 2009 rock biography of the Triffids, Vagabond Holes: David McComb and the Triffids, edited by Australian academics Niall Lucy and Chris Coughran.
Question: What other people did he work with in his career?
Answer:
John Hillcoat.