Kylie Jenner is "shocked" by the death of her hairstylist, Jesus Guerrero, a source tells PEOPLE. Per the insider, Jenner is "very upset" by the news and is helping Guerrero's family with funeral expenses.

Stars paid tribute to the hairstylist after he died "very suddenly and unexpectedly," according to his family.

Jesus Guerrero, a hairstylist to stars including Kylie Jenner, Kim Kardashian, Jennifer Lopez, Katy Perry and Christina Aguilera, has died. His family confirmed the news of his death on Instagram. Kim paid tribute to Jesus on her Instagram story writing,