Ariana Grande in London: Cynthia Erivo DUET and Selena Gomez Sings Along! // TRAIN BRAIN

Ariana Grande in London: Cynthia Erivo DUET and Selena Gomez Sings Along!

Selena Gomez sang along from the stands at one of Ariana Grande's first (of 10!) 'Eternal Sunshine' concerts in London, where the pop star also brought out her 'Wicked' co-star, Cynthia Erivo, for two surprise duets. Ariana has eight more shows at O2 Arena, before she's set to take a 'much-deserved break' amid public scrutiny.
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