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PITTSBURGH (KDKA) — Singer Ariana Grande says she “can’t wrap [her] head around” the death of rapper Mac Miller, her ex-boyfriend.

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Miller, a Point Breeze native, was found dead in his California home from a suspected overdose on Sept. 7. He was 26 years old.

Grande posted a picture of Miller on Instagram on Saturday in tribute, but Friday was the first time Grande spoke out about his death.

She posted a short video Friday afternoon showing Miller reaching out to cover her camera and laughing while she says, “It makes me happy!”

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In the caption, Grande says in part, “I really can’t wrap my head around it. We talked about this. So many times. I’m so mad, I’m so sad I don’t know what to do.”

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Grande and Miller dated for two years. The couple ended their relationship in May.

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Thousands of fans gathered at Frick Park’s Blue Slide playground on Tuesday to pay tribute to Miller during a vigil.