Theophilus London has been missing since July, according to his family.
London's family has filed a missing person report with the LAPD.
The artist is known for collaborating with Kanye West.
London is described as 6'2", 175 pounds, with dark brown eyes.
His family is pleading for him to let them know he is okay.
The LAPD is investigating and has asked for the public's help in finding London.
London's music videos have received millions of views on YouTube.
He is 35 years old and of Trinidad and Tobago descent.