Ariana Grande and Justin Bieber Mourn the Loss of Drummer Aaron Spears

David Crotty/Patrick McMullan via Getty Images

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Upon hearing the news, Bieber took to his Instagram Stories

Grande, who also worked with Spears, initially commented on Jessica's post

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Travis Barker, the drummer of the iconic band Blink-182

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Justin Bieber Mourn the Loss of Drummer

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Ariana Grande & Justin Bieber Mourn The Loss Of Drummer

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