Taylor Swift's 1989 World Tour is grossing an average of $4 million per stop. Here, the megastar performs in Atlanta. Rick Diamond / Getty

Every time Taylor Swift brings her squad to a city, she hauls in a ton of money. According to a report in Forbes, Swift’s 1989 World Tour has been an enormous earner since it launched in May, grossing an average of $4 million per stop. While this is sales of tickets, t-shirts and the like -- and not profit -- the intake puts the 80-stop tour on pace to become one of the highest-grossing in pop music history.

“It’s enormous,” Gary Bongiovanni, the head of concert data firm Pollstar, told Forbes, who added that the earnings from this tour alone are likely to put her at the top of any list of high-earning female musicians next year. “I would imagine she’s going to dwarf what everybody else does,” he said.

The 1989 tour will make Swift just the second woman to land a spot on the list of the Top 10 most lucrative tours ever. That list is topped by U2’s 360 Degrees Tour, which earned more than $736 million, and it is dominated by legacy rock n roll acts like the Rolling Stones, AC/DC and Bruce Springsteen. The only other woman on the list is Madonna, whose Sticky and Sweet tour earned $408 million over the course of its 85 dates, an average of $4.79 million per stop.

The appeal of Swift’s shows may extend beyond seeing and hearing the most popular musician in the western world. At many of the tour’s earliest stops, she tapped famous friends and powerful, successful women to appear on stage with her, ranging from iconic athletes like Serena Williams and the World Cup-winning U.S. women’s national soccer team to supermodels like Cara Delevigne and Heidi Klum to surprise musical guests like Nick Jonas and the Weeknd.

The 1989 tour wraps up next month, on December 12.