Jake Bailey, a beloved makeup artist for celebrities like Katy Perry, Mariah Carey, Gwen Stefani and Emmy Rossum, was found dead in his Los Angeles home on Friday morning. The 37-year-old Bailey is believed to have died from carbon monoxide poisoning. The New York Daily News reports that Bailey worked with Perry on her Super Bowl look, as well as her recent cover of Cosmo. His makeup work also appeared on the covers of Vogue, Vanity Fair, and Allure.

Bailey’s famous clients and friends mourned his loss on social media, sharing memories of his talent. Perry penned a long tribute to him, “I want you to know now finally and forevermore that I appreciate you and all the lessons we traded each other in this life. I love you,” she wrote on Instagram.

Yesterday afternoon Rossum tweeted:

And Paris Hilton also shared of photo of Bailey on Instagram:

Bailey’s death is being investigated as a suicide.