On the new Billboard Pop Shop Podcast, Katie & Keith are talking about Lady Gaga's positively massive, record-breaking show (where she reportedly played to more than 2 million fans) and whether it could ever be replicated here in the U.S. — like, are Los Angeles beaches even big enough for such a thing? And where would people park?!? Also on the show, we’ve got chart news on how Ghost scores its first No. 1 on the Billboard 200 albums chart — and brings hard rock back to No. 1 for the first time in four years. Plus, how Alex Warren’s “Ordinary” hits a new high on the Billboard Hot 100, climbing all the way to No. 2.

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