Question: The Main event features Olivia Newton-John, John Farnham and what Australian singer?

Documents:
source: Anthony Warlow
text: Anthony Warlow Anthony Thorne Warlow {'1': ", '2': ", '3': ", '4': "} (born 18 November 1961 in Wollongong, New South Wales, Australia) is an Australian opera and musical theatre performer, noted for his character acting and considerable vocal range. He is a classically trained lyric baritone.

source: The Main Event (video)
text: The Main Event (video) The Main Event is a video, released in 1999, of a tour The Main Event Tour by singers Olivia Newton-John, John Farnham and Anthony Warlow.

source: The Main Event (1998 concert tour)
text: The Main Event (1998 concert tour) The Main Event Tour was a 1998 joint concert tour by Australian singers John Farnham, Olivia Newton-John and Anthony Warlow.

source: Paul Begaud
text: Paul Begaud Paul Begaud is an Australian born songwriter, record producer and singer. He has written and/or produced songs for artists including Delta Goodrem, Tina Arena, Human Nature, Terri Clark, Honeyz, R&B Singer Selwyn (singer), Donny Osmond and country hall of fame star Wynonna Judd. Begaud’s most notable songs include the US Country #1 “Now That I Found You” recorded by Terri Clark and the UK R&B #1 “End of the Line” (Top 5 UK Pop Charts) recorded by UK girl group Honeyz. Begaud also composed the song “Dare to Dream” for the Sydney Olympic Games Opening Ceremony performed by Olivia Newton-John and John Farnham before a global audience of 4.5 billion. Begaud is a 3 x ARIA Producer Of The Year nominee.

source: Friends for Christmas
text: Friends for Christmas Friends for Christmas is a collaborative ARIA-Number #1 hit Christmas album by John Farnham and Olivia Newton-John recorded at Playback Recording Studio in Santa Barbara, California. It was released through Sony Music Australia and produced by Farnham's long-time music director Chong Lim, Released on 11 November, 2016 on CD format, as well as for digital download. The album features well-known traditional standards, by mostly American composers.

source: Lisa Edwards
text: Lisa Edwards Lisa Anne Edwards (born 18 April 1958) is an Australian solo and session singer and musician. In July 1992 she had a top 5 hit on the ARIA Singles Chart with her cover version of Godley and Creme's "Cry". Edwards is primarily a backing vocalist and has worked for fellow Australian and international artists, including John Farnham and Kylie Minogue. She also provided vocals on Real Life's "Send Me an Angel" and Olivia Newton-John's "Stronger Than Before". As a solo artist, Edwards has issued two studio albums, "Thru the Hoop" (1993) and "State of the Heart" (2005).

source: A Summer Night with Olivia Newton-John
text: A Summer Night with Olivia Newton-John A Summer Night with Olivia Newton-John was the eighteenth concert tour by Australian singer Olivia Newton-John, in support of her sixth soundtrack "A Few Best Men". The tour name drifts from her 1978 hit, "Summer Nights", from the musical film "Grease". It is Newton-John largest tour since the Heartstrings World Tour, which runs from 2002 to 2005. It was her first tour in the United Kingdom in over 30 years.

source: Physical Tour
text: Physical Tour The Physical Tour was the fifth concert tour by Australian singer Olivia Newton-John, in support of her 12th studio album, "Physical" (1981). The tour consisted of 64 shows in North America only, the second largest by Newton-John, visiting arenas and stadiums. It's the first concert tour by Newton-John since 1978 and her last in 16 years, until The Main Event Tour.

source: Highlights from The Main Event
text: Highlights from The Main Event Highlights from The Main Event is an Australian live album released in 1998, which consists of performances from the collaborative The Main Event Tour by John Farnham, Olivia Newton-John, and Anthony Warlow. The album peaked at No. 1 on the ARIA Albums Chart for two weeks in December that year. It was re-released in 2001 with three additional tracks.

source: Christmas Is Johnny Farnham
text: Christmas Is Johnny Farnham Christmas Is... Johnny Farnham (later re-released twice as Memories of Christmas by Johnny Farnham, with different cover art, at the time of the album's release, he was now recording under John Farnham) is a studio album of Christmas songs recorded by Australian pop singer John Farnham (then billed as Johnny Farnham) and released on EMI Records in December 1970. The single, "Christmas Happy", was also released in December. It would be Farnham's only Christmas album until some 46 years later, when in 2016 he would release Friends for Christmas, a duet seasonal album with Olivia Newton-John.

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Answer: Anthony Warlow