Question: What role did this Australian singer-songwriter, model and actress who collaborated with Martin Brannigan play in the soap opera "Neighbours?"

Context articles: Delta Goodrem
Natalie Imbruglia
Dean Geyer
Stefan Dennis
Sheree Murphy
Libby Kennedy
Lil' Chris (album)
Adrianne León
Ashleigh Brewer
Matt Turner (Neighbours)

Delta Lea Goodrem (born 9 November 1984) is an Australian singer-songwriter and actress.
 Born and raised in Sydney, New South Wales, she enrolled in dancing, acting, singing and piano classes at a young age.
 She began her career as a child actress, starring in various television shows and rose to prominence in 2002 in the Australian soap opera "Neighbours" as Nina Tucker.
Natalie Jane Imbruglia ( ; ] ; born 4 February 1975) is an Australian singer-songwriter, model and actress.
 In the early 1990s, she played Beth Brennan in the Australian soap opera "Neighbours".
 Three years after leaving the programme, she began a singing career with her successful hit cover of Ednaswap's song, "Torn".
Dean Stanley Geyer (born 20 March 1986) is a South African Australian singer-songwriter and actor who finished third in the 2006 season of the talent show television series "Australian Idol", and has had a notable role in the Australian soap opera "Neighbours" as Ty Harper.
 He joined the cast of the US show "Glee" in the 4th season as NYADA Junior Brody Weston and appeared in Terra Nova as Mark Reynolds.
Stefan Dennis (born 30 October 1958) is an Australian actor, best known for playing the role of cold-hearted and ruthless businessman Paul Robinson in the soap opera "Neighbours" from its first episode in March 1985 to the present day.
 He departed "Neighbours" in 1993, but returned in 2004 and has played Paul ever since.
 During his time away from "Neighbours" he was a cast member of Scottish soap opera "River City".
 He is also known for his 1989 hit single "Don't It Make You Feel Good", which reached Number 16 in the Irish and UK Singles Chart.
Sheree Victoria Murphy (born 22 August 1975) is an English actress and television presenter, best known for her roles as Tricia Dingle in the ITV soap opera "Emmerdale", Eva Strong in the Channel 4 soap opera "Hollyoaks" and Dakota Davies in the Australian soap opera "Neighbours".
Elizabeth Grace "Libby" Kennedy (also Kennedy-Fitzgerald) is a fictional character from the Australian soap opera "Neighbours", played by Kym Valentine.
 She made her first on-screen appearance on 3 October 1994 and departed on 5 November 2004, returning briefly for a single episode on 27 July 2005, before returning on 12 November 2007.
 Libby is the only daughter of Karl and Susan Kennedy and the mother to a son, Ben Kirk.
 Libby's storylines have included being involved in a motorbike accident, the loss of her husband Drew Kirk, giving birth to Ben, getting married to Daniel Fitzgerald and subsequently separating from him.
 In 2008, Valentine was forced to take sick leave for one month and executive producer, Susan Bower, made the decision to temporarily recast "McLeod's Daughters" actress Michala Banas in the role for a month.
 Valentine took leave from "Neighbours" in 2010 due to ill health and returned to the set in January 2011.
 A few months later, Valentine took indefinite leave from "Neighbours" to focus on her health.
 In March 2014, it was confirmed that Valentine would be returning to "Neighbours".
 She made her on-screen return on 11 June 2014.
Lil' Chris is the debut self-titled album by British singer-songwriter Lil' Chris.
 The album was co-written by Lil' Chris and pop producer and songwriter, Ray Hedges, alongside former member of Theaudience, Nigel Butler.
 Additional production also comes from Martin Brannigan (known for his work with Natalie Imbruglia).
 The album was originally due to be released on 9 October, two few weeks after the single "Checkin' It Out" was released, but was delayed as the album was not complete, eventually being released on 4 December 2006.
Adrianna Therese León (born March 15, 1987) is an American singer-songwriter, chef, personal fitness trainer, model and actress.
 She is the co-founder and lead vocalist of the rock band Caught Crimson.
 León began writing songs for the soap opera "General Hospital".
 León went on to have a role as the punk rock teen Brook Lynn Ashton, which earned her an Daytime Emmy nomination and a Soap Opera Digest Award, but left the ABC soap for the CBS soap opera "The Young and the Restless", where she took over the role of Colleen Carlton.
Ashleigh May Brewer (born 9 December 1990) is an Australian actress.
 She had a recurring role in "The Sleepover Club", before she joined the cast of "".
 Brewer played the role of Kate Ramsay in the long-running Australian soap opera "Neighbours" from 2009 until 2014.
 She currently portrays the role of Ivy Forrester on the CBS Daytime soap opera "The Bold and the Beautiful".
Matthew James "Matt" Turner is a fictional character from the Australian soap opera "Neighbours", played by Josef Brown.
 The actor was cast shortly after he completed a guest stint on rival soap opera "Home and Away".
 Brown relocated to Melbourne for filming and he shot his first scenes as Matt in October 2012.
 The character was created and introduced to "Neighbours" along with his family, as part of a major overhaul of the show's cast.
 He made his first screen appearance during the episode broadcast on 7 February 2013.
 Brown departed "Neighbours" on 25 March 2015, following Matt's death.
 Brown reprised the role for one episode on 9 August 2016.