Pop star Lady Gaga has undergone a medical scan to ensure she suffered no permanent damage after her onstage mishap with a pole earlier this month.

The singer suffered concussion after a backing dancer accidentally struck her skull with the large prop during a concert in Auckland, New Zealand.

The Poker Face star has since had a magnetic resonance imaging (MRI) exam, and she has taken to her Twitter.com page to assure fans the results are all clear.

She writes, "Went for an MRI. No harm from the concussion," before jokingly adding, "It appears my brain is just water and a large floating jellyfish."

Gaga also tweeted a message to her concerned dad Joseph: "I had them check my noodle (head). That was your father's day present."

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