Question: Donnette Thayer is a vocalist, guitarist, and songwriter most active in the 1980s and early 1990s indie rock scenes of Northern California, he later formed Hex with Steve Kilbey of The Church, an Australian psychedelic rock band formed in Sydney in which year?

Context paragraphs:
The Bhagavad Guitars: The Bhagavad Guitars are a Sydney-based indie-rock band formed in the late 1980s featuring John Kilbey (who appeared under the pseudonym "John Underwood" for their first 3 releases to distance himself from brother Steve Kilbey and his band, The Church), Jeremy Butterworth, Adrian Workman and Matt Kerr.  They recorded three 12 inch EPs for the Red Eye label before recording their debut album, which was shelved for five years due to record company disputes.  The original line up reformed in 2008 to record a new album - Unfamiliar Places, released May, 2011.

Heyday (The Church album): Heyday is the fourth album by the Australian psychedelic rock band The Church, released in November 1985.  The album marked the first occasion when group compositions dominated one of the band's releases.  Steve Kilbey has said: "The demo situation was getting to us - me writing the songs on my eight-track and bringing them along to the band.  It sounded too stiff.  We'd reached this new energy level on stage which by far superseded anything we'd ever recorded, so we knew the only way to get sounding like that (on record) was for the whole band to write together."

Curious (Yellow): Curious (Yellow) was a pop, alternative rock band formed in 1987 by Swedish-born Karin Jansson, a singer-songwriter and guitarist, formerly of feminist punk band Pink Champagne.  Curious (Yellow) had releases on Red Eye Records – an EP, "I Am Curious" and an album "Charms and Blues".  Both were produced by Steve Kilbey of The Church, who was Jansson's domestic partner.  The band's name and that of their first release are references to the 1967 Swedish cult film "I Am Curious (Yellow)".

Donnette Thayer: Donnette Thayer is a vocalist, guitarist, and songwriter most active in the 1980s and early 1990s indie rock scenes of Northern California.  Thayer was a member of the band Game Theory, and later formed Hex with Steve Kilbey of The Church.

The Church (band): The Church are an Australian psychedelic rock band formed in Sydney in 1980.  Initially associated with new wave, neo-psychedelia and indie rock, their music later came to feature slower tempos and surreal soundscapes reminiscent of dream pop and post-rock.  Glenn A. Baker has written that "From the release of the 'She Never Said' single in November 1980, this unique Sydney-originated entity has purveyed a distinctive, ethereal, psychedelic-tinged sound which has alternatively found favour and disfavor in Australia."  The "Los Angeles Times" has described the band's music as "dense, shimmering, exquisite guitar pop".

Under the Milky Way: "Under the Milky Way" is a single by Australian alternative rock band The Church, released on 15 February 1988 and appears on their fifth studio album "Starfish".  The song was written by bass guitarist and lead vocalist Steve Kilbey and his then-girlfriend Karin Jansson (ex-Pink Champagne, Curious (Yellow)).  It peaked at No. 22 on the Australian Kent Music Report Singles Chart, No. 24 on the United States "Billboard" Hot 100, No. 25 on the New Zealand Singles Chart and appeared in the Dutch Single Top 100.  At the ARIA Music Awards of 1989, the song won 'Single of the Year'.  It was issued simultaneously in both 7" vinyl and 12" vinyl formats by Arista Records (internationally) and Mushroom Records (Australian region).

Hex (Hex album): Hex is the 1989 self-titled debut album by indie pop band Hex, a duo formed by guitarist, songwriter, and lead vocalist Donnette Thayer, previously of Game Theory, and Steve Kilbey of Australian psychedelic rock band The Church.

The Church discography: The Church are an Australian psychedelic rock band formed in Sydney in 1980.  They have released 24 studio albums, numerous singles and other releases and an additional studio album under the name "".  This discography lists their original Australian releases, along with significant overseas compilations and singles.

Seance (album): Seance is the third album by the Australian psychedelic rock band The Church, released in 1983.  More atmospheric and brooding than its predecessor "The Blurred Crusade"' s jangling psychedelia and upbeat rock, it shows a greater use of keyboards, with the guitars taking largely textural roles on many songs.  While numerous tracks have become fan favorites over the years, the album saw considerably less success in Australia than previous releases and had limited exposure internationally.  Apart from the psychedelic noise experiment "Travel By Thought", which prefigures the band's extended improvised tracks of the 1990s and beyond, all songs were written solely by Steve Kilbey.

The Crystal Set: The Crystal Set were an Australian indie rock group formed in March 1983.  By 1987 the line-up was Russell Kilbey (bass and lead vocals), Phillip Maher (guitar and vocals), Davey Ray Moor (keyboards and vocals) and Tim Seckhold (drums).  In April 1988 Moor was replaced by Craig Hooper, who was replaced in turn by Luke Blackburn, in May 1989.  The group issued two studio albums, "From Now On" (May 1987) and "Almost Pure" (April 1991), before disbanding later that year.  Russell Kilbey is the younger brother of the Church's mainstay, Steve Kilbey.

Supporting paragraphs: Donnette Thayer The Church (band)
Answer: 1980