Los Angeles, Jul 25 (IANS): Rapper Lil Wayne abruptly ended his performance at the Medical Cannabis Concentrates Cup in San Bernardino, California after performing just four songs.

Wayne, who was scheduled to put on a full hour-long show, ranted at the audience before storming off stage, reports aceshowbiz.com.

"Don't you ever call me to do this sh*t again. Don't you, ever, ever, ever, ask me to do this sh*t again," Wayne told the crowd before dropping his mic and leaving the stage.

His act confused his own staff and support team in the process.

A representative for High Times, which produced the event, revealed in a statement that they "have no idea" why Wayne decided to cut his performance after just ten minutes.

"We are truly baffled by why Lil Wayne would do this in front of thousands of Cannabis Cup attendees -- in total disregard for his fans -- and are awaiting an explanation from his team," the representative added.