New York, Mar 23 : American rapper Kanye West is said to have delighted 1,500 of his fans after he made a surprise performance at Perez Hilton''s Texas SXSW party.

West, 31, performed six-songs at Dell's "Perez Hilton's One Night in Austin" on March 21, which was a last-minute decision for him.

The singer even had his DJ run back to the car for his laptop so that he could provide backing tracks to songs like "Heartless" and "Love Lock Down".

"Perez didn't even know Kanye would be performing. He was meant to be in Hawaii recording his new album. ... It was totally unexpected, and completely awesome," the New York Daily News quoted a source as saying. (ANI)