Problem: Men at Work were an Australian rock band best known for their 1981 hit "Down Under". Formed in 1979, their founding mainstay was Colin Hay on lead vocals; he formed the group with Jerry Speiser on drums and Ron Strykert on lead guitar. They were joined by Greg Ham on flute, saxophone, and keyboards and John Rees on bass guitar. This line-up achieved national and international success in the early 1980s.

By mid-1996, after a ten-year absence, Hay and Ham reformed Men at Work to tour South America. They had enjoyed strong fan support there during their earlier career and demands for a reunion had persisted. The 1996 line up had Stephen Hadley on bass guitar and backing vocals (ex-The Black Sorrows, Paul Kelly Band); Simon Hosford on guitar and backing vocals (Colin Hay backing band); and John Watson on drums (The Black Sorrows). The tour culminated in a performance in Sao Paulo, which was recorded for the Brazilian release of a live album, Brazil '96, in 1997, which was co-produced by Hay and Ham for Sony Records. It was re-released worldwide in 1998 as Brazil with a bonus track, "The Longest Night", the first new studio track since Two Hearts. In 1997 drummer Tony Floyd replaced Watson but by 1998 the lineup was Hay, Ham, James Ryan (guitar, backing vocals), Rick Grossman (of the Hoodoo Gurus) on bass and Peter Maslen (ex-Boom Crash Opera) on drums. In 1999 Ryan, Grossman and Maslen were out and Hosford and Floyd were back in, along with bassist Stuart Speed. Rodrigo Aravena was brought in on bass in 2000, along with Heta Moses on drums. Moses was replaced by Warren Trout in 2001 as Stephen Hadley returned on bass. The band toured Australia, South America, Europe and the US from 1998 to 2000. Men at Work performed "Down Under" at the closing ceremony of the 2000 Summer Olympics in Sydney, alongside Paul Hogan of "Crocodile" Dundee (1986). One of their European tours for mid-2000 was cancelled and the group had disbanded by 2002, although Hay and Ham periodically reunited Men at Work with guest musicians (including an appearance in February 2009, when they performed "Down Under" as a duo at the Australia Unites Victorian Bushfire Appeal Telethon).

Why was the tour cancelled?

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Problem: Gnarls Barkley is an American soul duo, composed of singer-songwriter CeeLo Green and producer Danger Mouse. They have released two studio albums, St. Elsewhere (2006) and The Odd Couple (2008). St. Elsewhere was recorded on the Warner Music UK label, and contained their hit single "Crazy" which topped at number two on the US Hot 100, and topped the charts in the UK. It was also nominated at the 2007 Grammy Awards for Record of the Year, and was platinum certified for shipping over 1,000,000 records.

In 2006, Sanjiv Bhattacharya interviewed the duo for The Guardian and asked about where their band name came from, to which Green replied: "You ask me why we're called Gnarls Barkley and I'm asking you 'why not?'...The name Gnarls Barkley isn't anchored down. It's a drifter. A High Plains drifter, I might add". Danger Mouse said: "There's no story behind it...The name doesn't have anything to do with anything". Although many people believe that their name has something to do with former NBA player Charles Barkley, the duo dismiss that idea. Sanjiv asked them about it, saying "Not even Charles Barkley, the basketball player?", to which Danger Mouse replied: "Nope. It's just like everything else on this record. There was no conscious decision about stuff". According to a Billboard article: "Burton and CeeLo have been cagey about what the name of the act means, and each live performance is an opportunity to play dress-up as tennis players, astronauts and chefs, among many other get-ups. The costuming extends to photo shoots, as Burton and Cee Lo would rather impersonate characters from such films as Back to the Future or Wayne's World. They also have dressed up as characters from films A Clockwork Orange and Napoleon Dynamite. About Gnarls Barkley, Green said in an interview: That is that electric industrial Euro soul, that's what I call it... if I can call it anything. It truly is shapeless and formless. My style and my approach is still water, and it runs so deep. So, with that project I got a chance to be a lil' zany, of course a continuation of eccentricity, abstract and vague, and all of those wonderful things that make art exactly what it is. And that's subject to interpretation. As far as the artiste himself, it does cater to and extend the legacy of Cee Lo Green, and showcase the diversity and range and intention of Cee Lo Green. It is a great project that I'm very, very proud of.

What else is significant about the band's name?

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". Danger Mouse said: "There's no story behind it...The name doesn't have anything to do with anything".