Chris Cornell laid to rest in Los Angeles

The Soundgarden frontman died last week in Detroit.

The private memorial opened with Cornell's song "The Promise," while fans waiting outside for their chance to later pay their final respects to the Seattle icon listened to music from his band Soundgarden, the AP added.

Cornell, 52, was found dead on May 17 in a Detroit hotel room, and his death was later ruled a suicide by hanging. However, his family has said that they believe medication may have played a role.

The family attorney couldn’t confirm if the drug Cornell’s widow said the musician took was Ativan or its generic version, lorazepam.

Earlier this week, Cornell's widow penned an open letter to her husband.

"I'm broken, but I will stand up for you and I will take care of our beautiful babies," she wrote. "I will think of you every minute of every day and I will fight for you."

The Associated Press contributed to this report.