The mother of hip-hop mogul Kanye West died following a “cosmetic procedure” in Los Angeles this weekend, her publicist told CNN Monday.

West died Saturday at the age of 58, confirmed a representative of West’s record label, Island Def Jam, who added that “the family respectfully asks for privacy during this time of grief.” Donda West was a major influence on her son’s life, as the music producer-singer-songwriter has often acknowledged.

She was the inspiration for the song, “Hey Mama,” on Kanye West’s 2005 album “Late Registration.” Among the lyrics: “Hey Mama, I wanna scream so loud for you, cuz I’m so proud of you … I appreciate what you allowed for me. I just want you to be proud of me.”

Earlier this year, she released a book she co-authored called “Raising Kanye: Life Lessons From the Mother of a Hip-Hop Superstar.”