
He and his band participated in the March For Our Lives gun reform protest by photographing themselves wearing the official t-shirt while backstage. After several mass shooting during the US leg of the arena tour, Styles adorned his guitar with a sticker reading "End Gun Violence". He also announced crowd member pregnancies and/or their baby gender reveals. Styles would routinely wave a variety of pride flags at each show, and would often read signs from closeted fans announcing their coming out. Designers included Alessandro Michele, Gucci, Calvin Klein, Raf Simons, Alexander McQueen, Givenchy, Harris Reed and Saint Laurent. Styles wore a wardrobe consisting of custom designed suits by high fashion designers at every show. In November, Mabel and The Preatures were announced as the opening acts for Europe and Australia respectively. and Canada, Warpaint in Asia, and Leon Bridges in South America and Mexico.

The opening acts for the arena tour were announced the same day, with Kacey Musgraves in the U.S. Later that same month, Styles announced a further 56 tour dates in Europe, Asia, Australia, South America, and North America for 2018, playing arenas. The small venue tour sold out in seconds due to the size of the venues. Styles chose to play smaller venues for his first shows to allow fans the opportunity for a more intimate live experience. In June, electronic band MUNA was announced as the supporting act for Styles' 2017 North American and European dates. Tour dates were announced prior to the album's release, on 28 April 2017 via Twitter and his official website. Tickets went on sale on 5 May. Styles released his debut album in May 2017. The tour ran from September 2017 to July 2018. In 2018, the show was upgraded to arenas worldwide.

#FLEETWOOD MAC TOUR DATES NOVEMBER 2017 SERIES#
Similar to Niall Horan's Flicker Sessions 2017, the tour initially began with a series of small venue concerts in 2017. Harry Styles: Live on Tour was Harry Styles first solo world tour, supporting his debut album.
