(CNN) - Rapper KID CUDI checked himself into rehab for depression and suicidal urges and posted a message on his Facebook page saying, "I am not at peace...My anxiety and depression have ruled my life for as long as I can remember and I never leave the house because of it. I cant make new friends because of it. I don't trust anyone because of it and I'm tired of being held back in my life. I deserve to have peace."