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Lady Gaga's proved she's no lip-syncher after a mic fault during a recent concert in Norway.
The Monster Ball tour has been on the road for months now and there are some critics who think she doesn't always sing live.
But when a technical fault cut off her mic during 'Alejandro' she shouted to the crowd "I told you I don't lip sync, my mic just went out."
"I will sing live every night. I will never lip-sync, not when you buy a ticket to my show," she told the audience.