Question: A Head Full of Dreams Tour is the seventh tour by Coldplay, and which had it's first show at a stadium that is known as Estadio Unico and is owned by who?

The A Head Full of Dreams Tour is the seventh concert tour currently being undertaken by British alternative rock band Coldplay, launched in support of their namesake seventh studio album "A Head Full of Dreams".  Marking the band's return to large-scale venues, after the brief and intimate Ghost Stories Tour, the tour will visit stadiums and arenas across five continents.  The A Head Full of Dreams Tour boasts extensive laser light and pyrotechnic visuals similar to the Mylo Xyloto Tour, and also sees a reappearance of the Xylobands as a central part of the show's visual design.  The tour consists of eight legs, with a total of 123 shows across Latin America, where they performed for the first time since the Viva la Vida Tour, Europe, North America, where they embarked on their very first stadium tour of the United States, Oceania, and Asia.  The first show of the tour was held at the Estadio Ciudad de La Plata in La Plata, Argentina, on 31 March 2016 and is set to conclude at the same venue on 15 November 2017.  A live album covering the tour will be released in November 2017. <SEP> The Maiden England World Tour was a concert tour by Iron Maiden, which began on 21 June 2012 in Charlotte, North Carolina and ended on 5 July 2014 with a performance at the Sonisphere Festival at Knebworth, UK.  The tour's setlist was largely based on the original 1989 concert video of the same name, shot during the Seventh Tour of a Seventh Tour in 1988, which was re-released in 2013.  Because of this, the tour's setlist consisted almost entirely of the band's 1980s material, with a particular focus on their 1988 album, "Seventh Son of a Seventh Son".  The stage show was also based on the original tour and featured numerous pyrotechnic effects in addition to multiple appearances by the band's mascot, Eddie.  Following 2005's Eddie Rips Up the World Tour and 2008–2009's Somewhere Back in Time World Tour, this was the group's third and final tour inspired by a particular period of their history. <SEP>  It is also known popularly as the Estadio Único and is owned by the Province of Buenos Aires, administered jointly by the provincial government, the Municipality of La Plata, and the football clubs Estudiantes de La Plata and Gimnasia y Esgrima de la Plata. The Estadio Ciudad de La Plata ("City of La Plata Stadium") is a multi-purpose stadium located in the city of La Plata, Argentina. <SEP> "Everglow" is a song by British rock band Coldplay.  It is the fourth track, promotional single and fifth single proper from their seventh studio album, "A Head Full of Dreams".  The song features uncredited guest vocals by Gwyneth Paltrow, the ex-wife of Chris Martin.  The song was served as a promotional single of the album and released on 26 November 2015.  The track was also premiered during Zane Lowe's Beats 1 radio show.  On 11 November 2016 it was released digitally as the fifth single proper from the album, in a newly-recorded stripped-down version that was inspired by Martin's unrehearsed solo performance of the song at the recent Glastonbury Festival due to a technical mishap.  The version ended with a sample of Muhammad Ali's 1977 speech in Newcastle upon Tyne.