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BERLIN -- Teenage pop star Justin Bieber rushed to help his mother when her hair caught fire while blowing out birthday candles at a gig in Germany, Us Weekly reported Monday.

Pattie Mallette, Bieber's mom, was celebrating her 35th birthday Saturday while her son was performing in Berlin. At the end of the show, Bieber called her on stage to present her with a birthday cake as the audience sang "Happy Birthday."

As Mallette leaned in to blow out her candles, a few strands of her hair came too close to the flames and caught fire.

Bieber immediately noticed and patted down his mother's hair to put out the fire.

After the show, Bieber tweeted about the incident. "Sick show in Berlin," he wrote. "[B]rought @studiomama on stage 2 sing her happy bday but she lit her hair on fire with the candles. lol. i saved her."