Arriving to remember the life of Adam Goldstein (aka DJ AM), Bill Kaulitz was spotted at Trousdale nightclub in Los Angeles, California on Tuesday night (August 24).

The "Tokio Hotel" lead singer was decked out in black jeans, a black leather vest and shades as he made his way inside for the tribute session attended by Bai Ling and Karissa Shannon, among others.

The one-year anniversary of DJ AM’s sudden death lands on this Saturday, August 28th. The American DJ died of an accidental drug overdose.

In other news, Tokio Hotel has been hard at work asking their fans to support a group called Designers Against Aids, whose purpose is to inform young people about the importance of safe sex.

Enjoy the pictures of Bill Kaulitz out at Trousdale (August 24).

Source