Kylie Jenner's hairstylist Jesus Guerrero's cause of death confirmed

Celebrity hairstylist Jesus Guerrero is confirmed to have died of severe pneumonia.

The hairstylist, whose star-studded clientele included Kylie Jenner, Jennifer Lopez, and Katy Perry, passed away on February 22.

Guerrero, 34, contracted a lung infection in addition to Cryptococcosis neoformans, a fungal species while he was on an overseas project, per a report from the Los Angeles County Department of Medical Examiner.

The report also listed Acquired Immunodeficiency Syndrome as a secondary cause. According to Mayo Clinic, the chronic condition can lead to a weakened immune system. His death is stated as natural.

A release shared by the DME states that Guerrero "arrived at a local hospital on the afternoon of February 21 after complaints of not feeling well. Death was pronounced the following morning."

His death was announced by his family on social media a day later. Guerrero was in Dubai on a work project with Lopez when he fell ill. The group proceeded their musical tour without him.

Guerrero's younger sister Gris wrote on a GoFundMe page that his death happened “suddenly and unexpectedly.”

A source revealed that Jenner later took matters in her hands and was "doing everything she can to be supportive and aid his family, including financially."

On February 25, Guerrero's sister updated his GoFundMe page to share that his family intended to "take care of all expenses" with the money raised. As of June 2, the page received $96,000 in donations, People Magazine reported.

However, "our family deeply appreciates Kylie for later offering to cover funeral expenses and offering up all her help and support. Donations raised through this fundraiser will go toward the costs associated with securing his belongings at home. As well as other unexpected expenses to settle his assets," the website stated.

Guerrero's funeral was held on March 30 in his hometown Houston.