Online ticket marketplace StubHub recently unveiled their roundup of statistics for the past 12 months and the wrap includes some interesting trends. Besides highlighting the speed at which contemporary bands move from supports to headliners, they also revealed which concerts are most often total sausage fests.

No, really. As CBS This Morning reports, StubHub’s gender breakdown reveals the shows that have the highest proportion of male attendees and vice versa, with three jam bands topping the list of concerts that are dominated by testosterone: The Allman Brothers, Phish, and Widespread Panic.

The top five was rounded out by alternative metal giants Tool and rock icon Bruce Springsteen, two acts who are also known for their penchant for jam sessions and lengthy show times. So perhaps the ladies aren’t as into extended drum solos and jazz breakdowns as the fellas are?

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Meanwhile, the shows with the highest percentage of women in attendance were Backstreet Boys, 5 Seconds Of Summer, Ariana Grande, One Direction, and Taylor Swift, though by significantly smaller margins.

For example, while an Allman Brothers show, on average, is about 80 percent dude, the Backstreet Boys shows attract an audience that is 69 percent comprised of female audience members, likely because getting down to Everybody (Backstreet’s Back) knows no gender.

Readers can check out the report from CBS This Morning below, which also revealed One Direction as the number one purchase on StubHub this year, followed by country star George Strait, Luke Bryan, Justin Timberlake, and Beonyce & Jay-Z.

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