Human Nature are an Australian pop vocal group, which formed in 1989, as a quartet featuring Toby Allen, Phil Burton and brothers, Andrew and Mike Tierney.

The 4 Trax initially gave street performances in the doo-wop style, and after winning some talent quests, they began singing professionally in clubs and built a following.

[17] They were a support act for the tour's European leg: visiting Ireland, England, France, Belgium, Austria and Switzerland in June 1997.

"[21] Human Nature garnered attention from Sony label mate, Michael Jackson: they were an opening act for the Australian leg of the HIStory World Tour in November and December 1996.

[22] Mike Tierney told G Mintern of The Times in November, "Well its totally amazing, and a real coup for us and a great opportunity to showcase our music to a large number of people.

[11] In an interview in July 2009 with Radar Online's reporter, Andrew described touring with Jackson: "[it] was an incredible break for us ... We learned so much from seeing him perform that many times and experienced things that have shaped us into the entertainers we are today.

The Story, produced and directed by Ross Wood, which contained footage of their European and Japanese 1997 tours supporting Dion, Jackson and Eternal.

[12][31] The group received a nomination at the ARIA Music Awards of 1998 for Producer of the Year for Paul Begaud's work on "Whisper Your Name" and another for Highest Selling Single (with Farnham) for "Every Time You Cry".

40)[12] Andrew and Michael co-wrote "She's Taken My Words" – the B-side for "Last to Know" – which was used as the theme song for Australian feature film, Paperback Hero (March 1999).

[38] Human Nature appeared in an Australian concert tour of symphonic versions of Beatles' songs, conducted by George Martin.

[2][16][39][40] At the ARIA Music Awards of 1999 they were nominated for Best Pop Release for Counting Down; Producer of the Year (Paul Begaud) for "Now That I Found You", "Depend on Me", "Last to Know", "Be There with You"; and Highest Selling Single for "Last to Know".

"[42] On 15 September Human Nature performed the Australian National Anthem at the opening ceremonies of the 2000 Summer Olympics with singer Julie Anthony and musician James Morrison.

[43] At the ARIA Music Awards of 2001 "He Don't Love You" was nominated for Highest Selling Single and Best Video (directed by Mark Hartley).

Jo Roberts of The Age described how "he prowls around the stage like a wild animal on heat; muscular, handsome and lascivious with dyed black hair, tattoos and androgynous, wet, red lips.

[3] On 25 June 2003 the group sang the national anthem at Game 2 of the Rugby League State of Origin match at Stadium Australia.

A blend of Bee Gees groove inspired dance floor tracks, upbeat pop numbers and gorgeous ballads.

"[49] Its first single "When You Say You Love Me", co-written by Darren Hayes (ex-Savage Garden) and Rick Nowels, is a cover version of Clay Aiken's album track.

[52][53] The album also features a reworking of "Guilty (One in a Million)" by Barry Gibb and Barbra Streisand,[53] and a cover of "To Be with You", a 1992 hit by glam metal band Mr. Big.

[55] AllMusic's Matt Collar found the tracks were "well-produced and reverent reworkings of the original '60s versions that should appeal to both aficionados of Motown soul and longtime Human Nature fans.

[need quotation to verify] Human Nature performed at the ceremony, ARIA provided a summary, "[the] lads delivered a fine medley of Motown hits and, in their sharp blue suits, were easily the best-dressed blokes in the room.

[12] Collar noticed that they "find a nice balance between updating the classic Motown sound for contemporary dance-pop fans while still remaining faithful to the original recordings.

[68] On 24 November 2007 Human Nature released their third Motown-themed album, Get Ready, which featured appearances by several original Motown artists: Smokey Robinson, Martha Reeves and Mary Wilson (The Supremes, The Temptations).

Sony issued a compilation box set, The Motor City Collection, on 19 April 2008 – to coincide with Wilson's duets – which peaked at No. 18.

[12] The group teamed up with their previous producer Eliot Kennedy to record their ninth studio album, A Symphony of Hits, with the Prague Philharmonic Orchestra.

[71][72] In May 2009 Human Nature became the second Australian group to have a residency on the Las Vegas Strip (The Four Kinsmen were the first, from 1996)[73] when they began a year-long engagement at the Imperial Palace Hotel and Casino.

"[74] On 12 December they returned to Australia for a homecoming show with Robinson and Jessica Mauboy at the Wyndham Estate winery in the Hunter Region.

[76] Human Nature released their ninth studio album, Vegas: Songs from Sin City, in November 2010, which reached the ARIA top 30.

[82] They were also featured musical guests on 23 April broadcast of the American ABC's Dancing with the Stars, alongside Motown artists, Robinson, Martha Reeves and the Temptations.

[87] The group performs the Smokey Robinson presents Human Nature: The Motown Show five nights a week at the Sands Showroom.

[91] In September they appeared on Australian TV's Sunrise to promote their concept album, Jukebox, featuring cover versions of tracks from the 1950s and 1960s.