Question: Who is the Scottish-American rock singer-songwriter who collaborated on the song Still Got a Long Way to Go?

Context articles: Long Way Down (Goo Goo Dolls song)
Long Way 2 Go
Long Way to Go (Gwen Stefani and André 3000 song)
Still Got a Long Way to Go
Christmas Time (Bryan Adams song)
Still Got the Blues (For You)
Still Got It
Jimmy Barnes
Still Got Time
It's a Long Way to Tipperary

"Long Way Down" is the fifth single by the Goo Goo Dolls from their breakthrough album, 1995's "A Boy Named Goo".
 This song is often overshadowed by the low-key ballad "Name", which launched the band to household names.
 Although it could not match the chart-topping success of "Name" on the rock and pop charts, "Long Way Down" reached No. 7 on the Billboard Mainstream Rock Tracks chart, but only made it halfway up the Modern Rock Tracks chart (#25).
 It did not reach the pop charts.
 "Long Way Down" was also part of the soundtrack for the 1996 film "Twister".
"Long Way 2 Go" is a song by American recording artist Cassie from her debut studio album, "Cassie" (2006).
 It was co-written by Cassie herself in collaboration with the song's producer, Ryan Leslie.
 The song was released as the second and final single from the album by Bad Boy Records on September 22, 2006.
 Musically, "Long Way 2 Go" is an upbeat hip hop song featuring prominent R&B characteristics with a laid-back and imperious theme to it.
 It talks about brushing away a would-be lover like dirt off one's shoulder.
 Additional vocals are provided by Ryan Leslie.
"Long Way to Go" is a song by American singer-songwriter Gwen Stefani with American rapper André 3000.
 The song appears as the closing track on Stefani's debut studio album, "Love.
 Angel.
 Music.
 Baby.
" (2004).
 It was released on November 23, 2004, along with the rest of "Love.
 Angel.
 Music.
 Baby."
 by Interscope Records.
 The track was written by both Stefani and 3000, while 3000 was the sole producer of the track.
 Despite being scrapped from André 3000's critically acclaimed OutKast studio album, "The Love Below" (2003), Stefani and 3000 finalized a reworked version of the song to be included on the former's album.
 The song prominently features a sample from Martin Luther King, Jr.'s "I Have a Dream" speech in its closing outro.
 King is not credited for contributed lyrics to the song.
 Musically, "Long Way to Go" is influenced by electronic music and alternative hip hop, with partial influence from both dance music and soul music.
"Still Got a Long Way to Go" is a collaborative song by ARIA Award-winning Australian musicians, Jimmy Barnes with Diesel.
"Christmas Time" is a song by Canadian rock singer-songwriter Bryan Adams.
 It was written by Adams and Jim Vallance and became Adams' most popular Christmas song.
 It was originally released on clear, green vinyl with a picture sleeve.
 It was written and recorded in Vancouver, British Columbia, Canada.
 No music video was shot for the song.
 Over thirty years after it was first recorded, the song still receives significant radio airplay each year during the Christmas season.
"Still Got the Blues (For You)" is a song by Northern Irish guitarist Gary Moore.
 It was originally released as the title track of the album "Still Got the Blues".
 The song was released as a single and reached #31 on the UK Singles Chart in May 1990.
 It is the only single of Moore's solo career to chart on the "Billboard" Hot 100, where it reached #97 on 16 February 1991.
 Moore played his Les Paul Standard Guitar throughout the song.
 He also filmed a basic music video for the song.
"Still Got It" is a song by American rapper Tyga featuring fellow Young Money-member, Drake.
 The original song was first leaked on June 21, 2010 with only Drake on it.
 The song was then re-released on October 4, 2011 as the second single from the rapper's debut studio album, "".
 The song was produced by Noah "40" Shebib and Supa Dups, appearing as a bonus track on the deluxe edition of the album.
 "Still Got It" marks the rapper's third consecutive release to impact the "Billboard" Hot 100, debuting at number eighty-nine for the chart week dated October 24, 2011; also peaking at number seventy on the R&B/hip-hop chart.
James Dixon Swan {'1': ", '2': ", '3': ", '4': "} (born 28 April 1956), better known as Jimmy Barnes, is a Scottish-Australian rock singer-songwriter.
 His career both as a solo performer and as the lead vocalist with the rock band Cold Chisel has made him one of the most popular and best-selling Australian music artists of all time.
 The combination of 14 Australian Top 40 albums for Cold Chisel and 13 charting solo albums, including nine No. 1s, gives Barnes the highest number of hit albums of any Australian artist.
"Still Got Time" is a song by English singer Zayn featuring Canadian singer and rapper PartyNextDoor.
 Zayn announced the song through social media.
 and it is taken from his upcoming second studio album.
 "Still Got Time" debuted on American radio on 24 March 2017.
"It's a Long Way to Tipperary" is a British music hall song written by Jack Judge and co-credited to Henry James "Harry" Williams.
 It was allegedly written for a 5-shilling bet in Stalybridge on 30 January 1912 and performed the next night at the local music hall.
 Now commonly called "It's a Long Way to Tipperary", the original printed music calls it "It's a Long, Long Way to Tipperary."
 It became popular among soldiers in the First World War and is remembered as a song of that war.