Lady Gaga's representative has described allegations that the singer profited from proceeds of her 'Pray for Japan' charity wristbands as "misguided and without merit".
Gaga launched a $5 self-designed bracelet in March to raise funds for those affected by the tsunami and earthquake in Japan.
However, a legal firm called 1-800-Law-Firm questioned on Monday whether all proceeds from the sale of the bracelets were going to relief efforts.
Gaga's representative Holly Shakoor has now responded to the allegations, saying: "This misguided lawsuit is without merit and unfortunately takes attention away from the kind deeds of the fans around the world who are supporting the people of Japan.
"The entire $5 donation made with the purchase of each bracelet is going to support the disaster relief. No profit is being made on shipping costs. Sales tax charges were made in accordance with local legal requirements."
Shakoor added: "Lady Gaga has personally pledged her own funds to this cause and continues to support the victims of the disaster."
GaGa visited Tokyo last weekend for a benefit concert to support those affected by the earthquake and tsunami that struck Japan on March 11 and sparked fears of a possible nuclear disaster.
During her time in the country, she was presented with a gift and letter of thanks from government officials as recognition for her efforts to raise money and awareness for victims of the natural disaster.
"I want to do everything I can to mobilise the youth to be aware of what is happening worldwide and help each other," she told The AP.
"I can't say enough to people all over the world that the majority of Japan right now, Japan in general, is very safe. It's fine to come here, it's beautiful."