The tour will launch in April and will include shows in the United States and Canada.
Six months on from a chaotic Co-op Live opening, OVG is looking to boost its share of the international live music business through a new global stadium business division.
The former One Direction member is currently on his first-ever solo headline tour.
Vocalist-guitarist Russell Moore has also joined the group.
The Live Nation-produced tour launches Feb. 9 in Melbourne.
The singer launched her 'Brat' tour at the northern city's 23,500-capacity Co-op Live venue.
The festival will be held at the city's Heaton Park next June, with a full lineup to follow in January.
The trek grossed nearly $210 million and sold 1.7 million tickets.
The enduring pop star leads the October monthly report in stadiums and arenas as she finishes an 18-month marathon of concerts.
The run of shows will conclude with a date at London's Wembley Stadium in July.
