500
How many siblings did Michael Jackson have?
What is nine. Maureen Reilette "Rebbie" Jackson, Sigmund Esco "Jackie" Jackson, Toriano Adaryll "Tito" Jackson, Jermaine LaJaune Jackson, La Toya Yvonne Jackson, Marlon David Jackson, Brandon Jackson (died shortly after birth), Steven Randall "Randy" Jackson
10. Janet Damita Jo Jackson (born May 16, 1966)