Billie Eilish has completely sold out of tickets for her 2020 ‘Where Do We Go? World Tour’ within days of the sale opening.

The 42-stop arena tour, which is her biggest yet, sold more than 500,000 tickets in North America, South America and Europe in the first hour of the onsale last week.

The 2020 tour, produced by Live Nation, includes 22 North American arenas (including Madison Square Garden, the Forum and Nashville’s Bridgestone Arena); seven South American dates (including a night at São Paulo’s 55,000-seat Allianz Parque stadium); and 13 European dates concluding with two consecutive O2 Arena nights that close out the tour in July 2020.

The 17-year-old star, who will kick off the tour March 9 in Miami, has already had a successful year, having shifted 12,364 tickets and grossed $659,427 at Moda Center in Portland, Oregon in May, and later in June she sold 5,941 tickets and grossed $411,070 at New York’s Radio City Music Hall.

Eilish’s co-agent at Paradigm, Sara Bollwinkel, said, according to Pollstar: “It’s impossible to know how quickly a tour will sell out, but Billie has sold out every tour in the last four years in under a minute. The build was gradual into these arenas and she is very ready for them.”

Her current tour has seen her play mostly in theatres, which have been consistently packed to the brim with fans, and created huge demand on the secondary market.

Bollwinkel said her theatre tour has been part of a “patient, long-game strategy that’s now paying off.”

She added: “There is a lot that goes into the decision of what venue she is going to play, what she can sell is only a portion of this decision. The truth is whatever amount of tickets are available, will get sold. She probably could have played MSG two years ago… but it doesn’t make sense to put a 15-year-old on a stage that big without the right experience under her belt and frankly that is just a lot to put on a kid.”

Image: Glenn Francis/Pacific Pro Digital Photography