Over her 40-plus-year career, Madonna has gone on a steady 11 tours, so what is it about her just-announced 12th trek — The Celebration Tour — that is creating so much buzz?

Well, for one, she’s promising an all-hits setlist – which for Madonna takes some narrowing down, given her 38 Billboard Hot 100 top 10s and 50 Dance Club Songs No. 1s. And while she’s played a lot of her hits in concert before, as far as we know, this is the first time she’s not touring around a new album — so she truly only has her back catalog to choose from.

On the new Billboard Pop Shop Podcast, Katie peppers Madonna superfan Keith with questions about the buzzy new global tour — like what lesser-known nuggets are fans dying to hear? And why now for this retrospective tour? Listen to the latest episode now:

Also on the show, we’ve got chart news on how SZA’s SOS is unstoppable at No. 1 on the Billboard 200 albums chart, notching a fifth straight week atop the tally, while Taylor Swift’s “Anti-Hero” captures an eighth week at No. 1 on the Billboard Hot 100 songs chart, making it the Swift song with the most weeks at No. 1. Plus, Zach Bryan’s slow-burn hit single “Something in the Orange” reaches the Hot 100’s top 10 more than eight months after its release.

The Billboard Pop Shop Podcast is your one-stop shop for all things pop on Billboard‘s weekly charts. You can always count on a lively discussion about the latest pop news, fun chart stats and stories, new music, and guest interviews with music stars and folks from the world of pop. Casual pop fans and chart junkies can hear Billboard‘s executive digital director, West Coast, Katie Atkinson and Billboard’s senior director of charts Keith Caulfield every week on the podcast, which can be streamed on Billboard.com or downloaded in Apple Podcasts or your favorite podcast provider. (Click here to listen to the previous edition of the show on Billboard.com.)