Lady Gaga is ruffling feathers among some disability advocates yet again after she rolled out in a wheelchair during a performance this week in Sydney, Australia.

The pop singer, whose real name is Stefani Germanotta, appeared dressed as a mermaid while seated in a wheelchair to sing “You and I.”

Afterward, some advocates criticized the use of a wheelchair for performance purposes alone.

“I invite her to learn more about the 5.6 million Americans who live with paralysis,” Jesse Billauer, of the advocacy group Life Rolls On Foundation said in a statement to RadarOnline. “They, like me, unfortunately, don’t use a wheelchair for shock value.”

Not everyone was miffed, however. One Australian blogger who uses a wheelchair even offered up her own mobility device to Lady Gaga for her next show.

“As wheelchair users we celebrate our chairs in all sorts of ways all the time. If Lady Gaga wants in on that action, more power to her. She did, after all, have quite the mobility issue dressed as a mermaid,” wrote Stella Young.

The controversy comes just months after Lady Gaga apologized for offending people with disabilities when she used the word “retarded” during a magazine interview.

“I consider it part of my life’s work and music to push the boundaries of love and acceptance,” she said in a statement at the time. “To anyone that was hurt, please know that it was furiously unintentional.”

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