Question: The "DM World Tour" is the third concert tour by Mexican popstar Dulce María, the tour began on which date?
Context: The E.N.D. World Tour was the third concert tour by American hip hop group The Black Eyed Peas, in support of their fifth studio album "The E.N.D." (2009).  The tour began in Japan on September 15, 2009, with shows also performed in Australia and New Zealand in 2009.  The group toured in North America starting in February 2010, with dates also planned for Europe starting in Dublin, Ireland in May.  The group performed 2 shows in Paradise, Nevada at the end of 2009 as a warm up to their extensive North American tour.  The tour was also expected to reach South America and more parts of Asia during 2010.  It is the group's biggest tour production-wise to date, with the group's female vocalist Fergie stating that they are "trying to up [their] game" and the shows will "utilize a lot of the technology that's out there".  The E.N.D. World Tour was backed by presenting sponsor BlackBerry, and Bacardi as the official spirit of the tour. The Gran City Pop Tour is the third solo concert tour by Mexican pop and rock singer Paulina Rubio.  The tour began in September 2009 in support of her ninth studio album Gran City Pop.  The tour began in Primm, Nevada and ended in Medellín the following year. "Gran City Pop tour" was considered her most successful tour to date; the tour visited over 13 countries in North America, South America and Europe.  The last sold out concert was recorded at the Auditorio Nacional's 10,000+ crowd in Mexico's capital, Mexico CIty. The Prismatic World Tour was the third concert tour by American singer-songwriter Katy Perry, in support of her fourth studio album, "Prism" (2013).  The tour began on May 7, 2014, in Belfast, Northern Ireland at the Odyssey Arena, concluding on October 18, 2015, in Alajuela, Costa Rica at Parque Viva after six legs.  The Prismatic World Tour grossed more than $204.3 million from 149 shows with a total attendance of 1,984,503 between 2014 and 2015 and it is Perry's most successful tour to date. Extranjera is the first album as a solo artist by Mexican popstar Dulce María.  "Extranjera" was divided into two EPs, starting with "Extranjera Primera Parte", containing seven songs, released on November 9, 2010.  and "Extranjera Segunda Parte" released on June 14, 2011, with 7 more tracks plus a DVD with extras.  The first single off the album was "Inevitable". The Evolve World Tour (stylized as ƎVOLVE World Tour) is the upcoming third concert tour by American pop rock band Imagine Dragons in support of their third studio album "Evolve" (2017).  The tour began on September 26, 2017, in Phoenix, Arizona at the Talking Stick Resort Arena, and is scheduled to conclude on April 26, 2018, in Stockholm, Sweden at the Ericsson Globe. The Greatest Hits Tour (also known as Overloaded: The Singles Tour) is the third concert tour Sugababes concert tour.  The tour began with night in Point Theatre on 27 March 2007, with the final show on 13 April 2007 in Wembley Arena. The Blond Ambition World Tour was the third concert tour by American singer-songwriter Madonna.  The tour was launched in support of her fourth studio album, "Like a Prayer", and the soundtrack, "I'm Breathless".  The tour reached North America, Europe and Asia.  It was a highly controversial tour, mainly for its juxtaposition of Catholic iconography and sexuality. " Rolling Stone" called it an "elaborately choreographed, sexually provocative extravaganza" and proclaimed it "the best tour of 1990."  In 1991, a documentary film, "Truth or Dare" ("In Bed with Madonna" outside North America), was released chronicling the tour.  The tour received the "Most Creative Stage Production" at the Pollstar Concert Industry Awards.  The tour was named the Greatest Concert of the 1990s by "Rolling Stone".  In 2015, the BBC credited the tour with "invent[ing] the modern, multi-media pop spectacle". The "DM World Tour" is the third concert tour by Mexican popstar Dulce María in support of her third solo album DM.  The tour began on March 24, 2017 in the Teatro Metropolitan in Mexico City. American singer Demi Lovato has embarked six concert tours and performed live at various award ceremonies and television shows.  Her debut promotional tour in 2008, Demi Live!  Warm Up Tour was based in North America only and supported her debut studio album, "Don't Forget" (2008).  At the same year, Lovato served as one of the opening acts for Jonas Brothers on their fifth concert tour, Burnin' Up Tour.  Lovato also served as one of the opening acts for Avril Lavigne on her third concert tour, The Best Damn World Tour on selected dates in North America.  In 2009, Lovato performed as the opening act on the Jonas Brothers World Tour 2009 with Jonas Brothers during the South American and European legs, before she continued to tour her first headlining tour, during Summer 2009, promoting her debut album "Don't Forget" and her sophomore album "Here We Go Again".  The tour featured opening acts, David Archuleta, Jordan Pruitt and KSM.  In 2010, Lovato performed as the opening act on Jonas Brothers' Live in Concert World Tour 2010.  On November 1, 2010, Lovato left the tour after a dispute arose to the public light involving her apparently punching one of the dancers of the tour.  After Lovato left, she was interned in a treatment center to seek out help. Dulce María Espinoza Saviñón (] ; born December 6, 1985) is a Mexican actress and singer.
Answer: March 24, 2017