Question: What concert tour visited Asia, Europe, and North America from 6 August 2015 to 11 January 2016 features collaborations with singers Jon Bellion, Troye Sivan, and rapper Logic?
Context: The Butterfly World Tour was the third concert tour by American singer-songwriter Mariah Carey.  The tour promoted Carey's album at the time, "Butterfly" (1997), and included songs from several of her previous albums.  The tour visited Asia, Australia and the United States, with rehearsals taking place in December 1997.  Starting on January 11, 1998 the tour spanned five shows in Asia, six in Australia, and one in Hawaii, US.  Throughout the tour, Carey varied hairstyles and outfits, as well as song selections.  The Butterfly World Tour was very successful; the four dates at Japan's largest stadium, Tokyo Dome, sold out in under one hour, equaling over 200,000 tickets, breaking the previous record she held at the stadium for show sell-outs. I'm The J57 is the first full-length solo studio album of American rapper and music producer J57.  With major music production credits from J57, the album was released on January 19, 2016 through FiveSeven Music.  Preceding the album's release were singles "Soarin' Like Jordan" which featured vocal appearances from Archie Bang and The Audible Doctor, "Impatient" featuring Tiffany Topol, "Burn The Empires" featuring DeeJay Element, Tenacity, Sean Boog and Mean Joe Scheme and "Jon Bellion 4 Prez", a song he released as a tribute to Jon Bellion. True Colors is the second studio album by Russian-German electronic music producer Zedd released on 15 May 2015 by Interscope Records.  The album features collaborations with singers Jon Bellion, Troye Sivan, rapper Logic, upcoming production duo Botnek and bands such as Echosmith, Bahari and X Ambassadors.  It features other collaborations, of whom are uncredited, such as Julia Michaels, Jacob Luttrell and Tim James. Taiwanese singer Jolin Tsai ( ) has embarked on four concert tours, each of which has been worldwide.  Her 2004 debut, the J1 World Tour, was based in Asia and visited North America.  Tsai appeared onstage on a rising platform and stroke yoga poses.  In 2006, Tsai performed on the Dancing Forever World Tour, which visited Asia, Oceania, and North America.  The performances featured Tsai striking yoga poses on rings and pommel horse.  However, some critics complained that the show concentrated on "juggling", but generally the response was favorable.  In 2010, she embarked on the Myself World Tour.  The performances featured Tsai performing either aerial hoop or pole dance during the final segment.  She grossed more than NT$150 million and eventually played in front of 600,000 people in Asia, Europe, and Oceania.  In 2015, Tsai performed on the Play World Tour, which collaborated with Live Nation Entertainment and visited Asia and North America. The Rebel Heart Tour was the tenth concert tour by American singer Madonna, and was staged in support of her thirteenth studio album, "Rebel Heart".  Comprising 82 shows, the tour visited North America, Asia, Europe, and Oceania.  It began on September 9, 2015, in Montreal, Canada, at the Bell Centre and concluded on March 20, 2016, in Sydney, Australia at Allphones Arena.  It was officially announced on March 1, 2015, through Madonna's website and was led by Live Nation Entertainment's Global Touring Division, helmed by Arthur Fogel; this was the fifth collaboration between Madonna and Live Nation as well her third tour to be promoted by the company.  An all-arena tour, the Rebel Heart Tour visited cities where the singer has not performed before, and was her first to visit Australia since The Girlie Show World Tour (1993) more than 20 years prior. The Take Me Home Tour was the second headlining concert tour by British-Irish boy band [¹d].  Announced by member Liam Payne at the 2012 BRIT Awards in early 2012, the original concert tour was billed as the UK & Ireland Arena Tour.  In mid-2012, the concert tour expanded with legs in North America and Australia following the band's international breakthrough.  The concert tour visited arenas and stadiums from February through November 2013.  The concert tour commenced at London's O2 Arena on 23 February 2013.  The tour was documented in the film "" directed by Morgan Spurlock . The True Colors Tour was a headlining concert tour by Russian-German music producer Zedd, launched in support of his studio album "True Colors".  The tour visited Asia, Europe, and North America from 6 August 2015 to 11 January 2016. The Speak Now World Tour was the second concert tour by American singer-songwriter Taylor Swift.  Also referred to as the Speak Now World Tour 2011 and the Speak Now World Tour 2012, the tour was launched in support of her third studio album "Speak Now" (2010).  The tour visited Asia, Europe, North America, and Oceania.  It was ranked 10th in Pollstar's "Top 50 Worldwide Tour (Mid-Year)", earning over $40 million.  At the conclusion of 2011, the tour was placed fourth on Pollstar's annual "Top 25 Worldwide Tours", earning $104.2 million with 100 shows.  This made it the highest-grossing female and solo tour of 2011. Icelandic music composer and singer Björk has embarked on seven concert tours, with all of them being worldwide.  After her split up with The Sugarcubes, Björk embarked in her first concert tour to promote "Debut".  The Tour lasted one year, from August 1993 to July 1994, and included a concert to support the U2 on their Zoo TV Tour at the Wembley Stadium.  The following year, she performed on the worldwide Post Tour which was extensively long and critically lauded.  The tour visited different festivals and arenas throughout Europe, North America, Oceania and Asia and featured the first performance in South America.  In November 1997, with the release of "Homogenic" she embarked on the Homogenic Tour after promoting the album with a short promotional tour earlier during the same year.  The Tour was extended in 1998 after a cancelled North America tour with the Radiohead.  After the end of the tour in 1999, Björk embarked on the Vespertine World Tour which featured performances with a full Orchestra in Opera houses.  The tour was critically lauded and financially expensive.  In 2003 she toured throughout Europe and North America (including one stop in Asia) for her Greatest Hits Tour, performing in Stadiums and headlining major European Festivals. Troye Sivan Live is the debut concert tour by Australian recording artist, Troye Sivan.  The tour supports his fourth EP, "Wild" and debut studio album, "Blue Neighbourhood".  The tour started in October 2015 in North America and continued in Europe in November 2015 and Australia in January 2016.
Answer: The True Colors Tour