A Billboard Pop Shop Podcast episode rounds up a weekend of surprise guest appearances across pop and Broadway, highlighting Chappell Roan joining Noah Kahan, Cynthia Erivo reuniting with Ariana Grande, and Kristen Bell surprising a baseball crowd. These unannounced cameos delighted fans and generated buzz across genres and continents, underscoring how surprise collaborations continue to be a major draw at live events.

Chappell Roan appeared with Noah Kahan at the Rose Bowl in Pasadena to perform her song "California", while Cynthia Erivo reunited with her Wicked co-star Ariana Grande at London's O2 Arena during Grande's "Eternal Sunshine" show. Meanwhile, Kristen Bell delivered a Disney-themed Broadway medley to Savannah Bananas fans at Denver's Coors Field. The podcast also covers chart news, including Stray Kids' new album THIS & THAT debuting at No. 1 on the Billboard 200, tying the group for second-most chart-topping albums, plus top-10 debuts from Pooh Shiesty, Karol G and Role Model.