BERLIN, April 4 (UPI) -- Justin Bieber's mother's hair caught fire as she blew out candles on her birthday cake on stage at the pop star's concert at Berlin's O2 World arena.
People.com said Bieber, 17, acted quickly and extinguished the flames that threatened mom Pattie Mallette's tresses.
"Mama, I'll always be your baby," Germany's Bild newspaper quoted Bieber as saying after he patted out the fire.
People.com said Monday Bieber and Mallette posted Twitter messages regarding Saturday night's incident.
"brought @studiomama on stage 2 sing her happy bday but she lit her hair on fire with the candles. lol. i saved her," Bieber tweeted.
Mallette thanked her son for the cake "[& embarrassing me on stage lol.]"
People.com did not report Mallette's age.