Who has sold the most concert tickets ever?
No context provided
Who has sold the most concert tickets ever in a single concert as of July 1, 2017?
Il Blasco Vasco Vasco Rossi
There were several books written about the band: "Istina o Bijelom dugmetu" ("The Truth about Bijelo Dugme", 1977) by Danilo Štrbac, "Bijelo Dugme" (1980) by Duško Pavlović, "Ništa mudro" (1981) by Darko Glavan and Dražen Vrdoljak, "Lopuže koje nisu uhvatili" ("Rascals That Weren't Caught", 1985) by Dušan Vesić, "Bijelo Dugme" (2005) by Asir Misirlić, "Bijelo Dugme - Doživjeti stotu" (2005) by Zvonimir Krstulović, "Kad bi bio bijelo dugme" (2005) by Nenad Stevović, "Kad sam bio bijelo dugme" ("When I Was a White Button", 2005) by Ljubiša Stavrić and Vladimir Sudar and "Šta bi dao da si na mom mjestu" (2014) by Dušan Vesić.
Who has sold the most concert tickets ever in a single concert as of June 28, 2005?
Bijelo Dugme
Bijelo Dugme
This page lists the highest-attended concerts of all time. The oldest 100,000-crowd concert reported to "Billboard" Boxscore is Grateful Dead's gig at the Raceway Park, Englishtown, New Jersey on September 3, 1977. The concert was attended by 107,019 people, which remains the largest ticketed concert in the United States to date. Frank Sinatra, Tina Turner, and Paul McCartney broke the record respectively in Maracanã Stadium. With an audience of over 184,000 people on April 21, 1990. McCartney's record was broken by a Japanese rock band, GLAY, which held a concert with an audience of 200,000 people on July 31, 1999, in Chiba, Japan (Makuhari Parking Lot). GLAY held the record for 17 years. Italian singer Vasco Rossi surpassed McCartney's record with his solo concert on July 1, 2017. The concert was a celebration of his 40 years of career. Robbie Williams played to an audience of 135,000 in Phoenix Park, Dublin in Aug 2003. 
Who has sold the most concert tickets ever in a single concert as of July 31, 1999?
Glay
List of highest-attended concerts
List of highest-attended concerts
https://en.wikipedia.org/wiki/List%20of%20highest-attended%20concerts
Bijelo Dugme
https://en.wikipedia.org/wiki/Bijelo%20Dugme
Vasco Rossi
https://en.wikipedia.org/wiki/Vasco%20Rossi
List of highest-grossing concert tours
https://en.wikipedia.org/wiki/List%20of%20highest-grossing%20concert%20tours
The oldest 100,000-crowd concert reported to Billboard Boxscore is Grateful Dead's gig at the Raceway Park, Englishtown, New Jersey on September 3, 1977. The concert was attended by 107,019 people, which remains the largest ticketed concert in the United States to date. Frank Sinatra, Tina Turner, and Paul McCartney broke the record respectively in Maracanã Stadium. With an audience of over 184,000 people on April 21, 1990. McCartney's record was broken by A-ha in 1991 during the Rock in Rio, when they drew about 198,000 people with tickets. Their record was broken by a Japanese rock band, Glay, which held a concert with an audience of 200,000 people on July 31, 1999, in Chiba, Japan (Makuhari Parking Lot). GLAY held the record for 6 years. Italian singer Vasco Rossi surpassed McCartney's record with his solo concert on July 1, 2017. The concert was a celebration of his 40 years of career.
List of highest-attended concerts
 For the concert in Belgrade, more than 220,000 tickets were sold, but it was later estimated that it was attended by more that 250,000 people
Turneja 2005: Sarajevo, Zagreb, Beograd
Turneja 2005: Sarajevo, Zagreb, Beograd (trans. 2005 Tour: Sarajevo, Zagreb, Belgrade) is the fourth live album by Yugoslav rock band Bijelo Dugme,
Turneja 2005: Sarajevo, Zagreb, Beograd
His Modena Park 2017 concert is the current highest-attended ticketed concert of all time.
Vasco Rossi
Maracanã Stadium (Portuguese: Estádio do Maracanã, standard Brazilian Portuguese: [esˈtadʒi.u du maɾakɐˈnɐ̃], local pronunciation: [iʃˈtadʒu du mɐˌɾakɐˈnɐ̃]), officially named Estádio Jornalista Mário Filho (IPA: [iʃˈtadʒ(i)u ʒoʁnaˈliʃtɐ ˈmaɾi.u ˈfiʎu]), is an association football stadium in Rio de Janeiro, Brazil.
Maracanã Stadium
Modena Park 2017 was a concert performed by Italian rock singer Vasco Rossi on 1 July 2017 in Modena, Italy,
Modena Park 2017
The oldest 100,000-crowd concert reported to Billboard Boxscore is Grateful Dead's gig at the Raceway Park, Englishtown, New Jersey on September 3, 1977. This concert was attended by 107,019 people, which remains the largest ticketed concert in the United States to date. Paul McCartney broke this record in Maracanã Stadium in Rio de Janeiro, Brazil with an audience of over 184,000 people. McCartney's record was then broken by A-ha in 1991 during the Rock in Rio, when they drew about 198,000 people with tickets. Their record was then broken by a Japanese rock band, Glay, which held a concert with an audience of 200,000 people on July 31, 1999, in Chiba, Japan. Glay held the record for 6 years. Then, in 2005, rock band Bijelo Dugme sold more than 200,000 tickets for their concert in Belgrade, but it was later estimated that more than 250,000 attended the concert, setting a new record. Italian singer Vasco Rossi then surpassed these records with his solo concert on July 1, 2017 in Modena, Italy. This concert was a celebration of his 40 years of career and is the current highest-attended ticketed concert of all time.