Madonna's longtime backing vocalists Donna De Lory and Niki Haris join the Billboard Pop Shop Podcast to talk the potential of a reunion with the Queen of Pop, why the iconic "Vogue" single (on which they sang) has endured, their upcoming club shows and the possibility of new music from them. Plus, chart news on Ariana Grande, 21 Savage and Kali Uchis, as well as word of new music on the horizon from Billy Joel and Justin Timberlake.
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