Katy Perry penned a heartbroken tribute to her late hairstylist Jesus Guerrero, after his mysterious death a week ago at the age of 34. Guerrero, whose clients included Kylie Jenner, Jessica Alba, and Jennifer Lopez, died 'very suddenly and unexpectedly' after falling sick with a mystery illness. Perry posted an Instagram album in his memory, including photos and videos of them together. Guerrero's family is seeking answers as to the cause of his death, and Kylie Jenner has offered to cover the funeral expenses.