Kanye West Attends Lil Durk's Federal Trial In Murder-for-Hire Case

Kanye West is showing up for Lil Durk ... making a surprise appearance Thursday at the rapper's federal trial ... TMZ has learned.

Sources with direct knowledge tell TMZ ... Ye is currently inside the downtown Los Angeles courthouse where Durk's murder-for-hire case is playing out. We're told Kanye is sitting in the second row wearing an all-black outfit, including leather pants. He walked in with black sunglasses but took them off when he sat down.