Question: What was the 2016 population of the city where Ariana Grande's "The Dangerous Woman Tour" began?

Context paragraphs:
Tommy Brown (record producer): Thomas Lee "Tommy" Brown (born May 1, 1986), also known as Tommy Brown or TB Hits, is an American recording artist, musician, Multiplatinum record producer and songwriter.  Tommy currently lives in LA and was born and raised in Pittsburgh, Pennsylvania.  He has received awards from ASCAP, and was Grammy  nominated.  He has scored multiple chart topping albums while working with Ariana Grande on her debut #1 album Yours Truly, and her second #1 album My Everything, lastly, Grande's 3rd studio album, Dangerous Woman charting #2 on Billboard 200.  Brown has also collected production credits for three songs on Grammy-award winning artist Meghan Trainor's second album, Thank You.  Brown's upcoming releases are DJ Khaled's next single "Forgive Me Father" feat Trainor & Wale, and Macy Gray's single "Sugar Daddy" feat Andre 3000.  Tommy Brown is also a music producer.  He has produced for many prominent artists including Ariana Grande, Travis Scott, Chris Brown, Black Eyed Peas (which gained him a Grammy nomination in 2010), T.I, Jennifer Lopez, Fifth Harmony, Pia Mia, Macy Gray, Jhene Aiko, Big Sean, Meghan Trainor, Victoria Monet, Meek Mill, Ludacris, Ray J and Gorilla Zoe.  He learned from production greats Roy "Royalty" Hamilton and Rodney Jerkins of Darkchild, while working alongside them and eventually creating a team of his own and producing with them.

Phoenix, Arizona: Phoenix ( ) is the capital and most populous city of the U.S. state of Arizona.  With 1,615,017 people (as of 2016 ), Phoenix is the fifth most populous city nationwide, the most populous state capital in the United States, and the only state capital with a population of more than one million residents.

Into You (Ariana Grande song): "Into You" is a song by American singer Ariana Grande from her third studio album "Dangerous Woman" (2016).  Grande co-wrote the song with Savan Kotecha, Alexander Kronlund, and its producers Max Martin and Ilya Salmanzadeh.  The song was made available by digital download on May 6, 2016 via pre-order of the album and was later serviced to contemporary hit and rhythmic radio on June 28, 2016 as the album's second single.  "Into You" is a dance-pop song, with elements of EDM and it features "a thudding disco beat, lurking synths and sharp clicks" in its instrumentation.

Dangerous Woman (song): "Dangerous Woman" is a song recorded by American singer Ariana Grande, serving as the lead single for her third studio album of the same name (2016).  It was co-written and produced by Johan Carlsson and Ross Golan, with additional writing from Max Martin.  The recording was released as the first single from the album on March 11, 2016, the same date of the album's pre-order on iTunes Store.  "Dangerous Woman" is a mid-tempo pop and R&B song, incorporating an arena rock chorus and a guitar solo during its bridge.

Greedy (Ariana Grande song): "Greedy" is a song recorded by American singer Ariana Grande.  The track appears on "Dangerous Woman" (2016), her third studio album.  The song was written by Max Martin, Savan Kotecha, Alexander Kronlund, and Ilya Salmanzadeh (known mononymously as Ilya), and produced by Martin and Ilya.  The song was released on May 14, 2016, as an instant gratification track to accompany digital pre-orders of "Dangerous Woman".  Grande debuted "Greedy" on Apple Music the day after "Everyday".

Dangerous Woman Tour: The Dangerous Woman Tour was the third concert tour by American singer Ariana Grande; it promoted her third studio album, "Dangerous Woman" (2016).  The tour began on February 3, 2017, in Phoenix, Arizona, and, after stops in North America, Europe, Latin America, Asia and Oceania, it ended on September 21, 2017, in Hong Kong.

Everyday (Ariana Grande song): "Everyday" is a song recorded by American singer Ariana Grande, featuring rapper Future.  The track appears on "Dangerous Woman", her third studio album.  The song was written by Savan Kotecha, Ilya, Grande and Future, and produced by Ilya.  "Everyday" is a woozy electropop and trap song built around a grinding beat and a thrumming bassline.  One of Grande's more lyrically explicit songs, the lyrics speak of sexual satisfaction.  The track received mixed reviews from music critics who appreciated its production, but were ambivalent towards Future's feature.

Dangerous Woman (album): Dangerous Woman is the third studio album by American singer Ariana Grande, released by Republic Records on May 20, 2016.  The album is the follow-up to her second studio album "My Everything" (2014), and features guest appearances from Nicki Minaj, Lil Wayne, Macy Gray and Future.  The album was originally to be titled "Moonlight" and the song "Focus" was the intended lead single.  However, later the album's name was changed to "Dangerous Woman" and "Focus" was removed from the album's standard track listing.  "Dangerous Woman" is primarily a pop and R&B album, with influences of dance-pop, disco, house, trap, and reggae genres.  Grande, Max Martin, and Savan Kotecha were the album's executive producers.  All three wrote or produced songs for the album, as did musicians such as Ilya Salmanzadeh and Tommy Brown.

Focus (song): "Focus" is a song recorded by American singer Ariana Grande.  The song was released on October 29, 2015 by Republic Records, it was originally intended to be the lead single from her third studio album "Dangerous Woman", later, "Dangerous Woman" replaced it as the lead single, the song was scrapped from the standard edition track listing, with the track only being included as a bonus track on the Japanese edition of the album.  The song was written by Grande, Savan Kotecha, Peter Svensson, Ilya Salmanzadeh.  "Focus" is complemented with horns such as saxophone, trumpet and trombone, keyboards, cowbells and percussion.  Lyrically, the song has a theme of empowerment.

Be Alright (Ariana Grande song): "Be Alright" is a song by recorded by American singer Ariana Grande for her third studio album "Dangerous Woman" (2016).  The singer co-wrote the track with Tommy Brown, Victoria McCants, Khaled Rohaim, Nicholas Audino, Lewis Hughes and Willie Tafa, while its production was handled Twice as Nice and Brown.  The song was released as the first promotional single from the album on March 18, 2016.  In terms of music, "Be Alright" is inspired by 1990's deep house and also influences from R&B and Chicago house.  Lyrically, it is a carefree song about being optimistic.  It was performed live for the first time on "Saturday Night Live", with choreography inspired by the vogue style of ballroom culture, the same choreography was adopted by Grande during her Dangerous Woman Tour where the song served as opening track.

Supporting paragraphs: Dangerous Woman Tour Phoenix, Arizona
Answer: 1,615,017