U.S. singer Lady Gaga waves as she walks across the tarmac after arriving by private jet at Sydney Airport July 9, 2011.[Photo/Agencies]

NEW YORK - Even one of online video's biggest stars isn't immune to copyright claims.

Lady Gaga's YouTube account was suspended Thursday. The notice read that the suspension was due to "multiple or severe violations of YouTube's copyright policy."

The Google Inc.-owned YouTube declined to comment. It's YouTube policy to remove accounts after three copyright violations, though they can be restored after being corrected.

Reports have suggested that the infringing video was a recently uploaded clip of Gaga's performance on Fuji TV. Messages left with Gaga's publicist and record label, Interscope, weren't immediately returned Thursday.

The account, "ladygagaofficial," is one of two for Gaga. The removed channel is run by Gaga's camp, while she also has an unaffected Vevo account.

The Vevo account, which has more than 1.6 billion views, generally debuts her music videos. Co-owned by Universal Music Group and Sony Entertainment, Vevo is a music video platform that also distributes videos on YouTube.

The suspension is expected to be temporary.

On Thursday, Gaga's HBO concert special "Monster Ball Tour at Madison Square Garden" earned five Emmy Award nominations.