On the new Billboard Pop Shop Podcast, Katie & Keith are talking about Katy Perry's "I'm His, He's Mine," featuring Top Dawg singer/rapper Doechii on a fiery duet that made its live debut on Wednesday's MTV Video Music Awards. The song includes a prominent sample of Crystal Waters' 1991 Billboard Hot 100 top 10 hit "Gypsy Woman (She's Homeless)," which roots the song in a nostalgic feel while still feeling wholly modern.

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