United Kingdom, July 2 -- John Legend has responded to Kanye West's recent bizarre insults, describing the remarks as "sad".

The singer hit back at the rapper, 48, after he sparked controversy in a March interview with DJ Akademiks, during which he wore a Ku Klux Klan outfit and launched a rant including the line: "Look at John Legend's old sissy a**."

Kanye went on: "I ain't never do nothing wrong to that n****. I changed generations of his life. And he got on that f****** ass hot sweater. They said he smells like mashed potatoes."

While reflecting on their past collaboration during an appearance on Hot 97's Ebro in the Morning radio show, John, 46, tackled Kanye's fixation on his appearance.

The crooner said: "He was very obsessed w...