While many fans are celebrating the launch of Lady Gaga’s long-awaited beauty brand, some are taking issue with the singer’s decision to launch the line exclusively on Amazon.

On Monday, preorders kicked off for Lady Gaga’s beauty brand, Haus Laboratories. The prelaunch seems to be coordinated with Amazon Prime Day, which also kicked off on Monday.

Read more: Lady Gaga is launching her long-awaited beauty brand exclusively on Amazon – and preorders start on Prime Day

Haus Laboratories is the first major beauty brand to be sold exclusively on Amazon. A deal with Lady Gaga is a significant win for the e-commerce giant, which has been building out its beauty business.

However, some people are taking issue with Lady Gaga's decision to sell the line exclusively on Amazon.

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On Monday, Amazon warehouse employees in Minnesota are striking on Prime Day. German Amazon employees are also planning to strike, as thousands protest for higher wages and improved working conditions.

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Amazon has also faced backlash for its work with big data company Palantir, which has a $51 million contract with the US Immigration and Customs Enforcement (ICE). Last week, a group of Amazon employees sent an internal email calling for Amazon to stop working with Palantir and condemn ICE's actions.

"As we've said many times and continue to believe strongly, companies and government organizations need to use existing and new technology responsibly and lawfully," an AWS representative told Business Insider.

"There is clearly a need for more clarity from governments on what is acceptable use of AI and ramifications for its misuse, and we've provided a proposed legislative framework for this," the representative continued. "We remain eager for the government to provide this additional clarity and legislation, and will continue to offer our ideas and specific suggestions."

Read more: Read the internal letter sent by a group of Amazon employees asking the company to take a stand against ICE

Haus Laboratories did not respond to Business Insider's request for comment. And, while some fans are displeased with the singer's decision to sell exclusively on Amazon, others celebrated the launch on Monday.

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Amazon has pushed back against allegations of subpar or unsafe working conditions. In a statement emailed to Business Insider on Monday, a representative said that promotions like Prime Day had "become an opportunity for our critics, including unions, to raise awareness for their cause, in this case, increased membership dues."

"These groups are conjuring misinformation to work in their favor, when in fact we already offer the things they purport to be their cause - industry-leading pay, benefits, and a safe workplace for our employees," the representative continued.