Washington DC, July 25 -- Oprah Winfrey has jokingly described her brief stint as a singer as "one of the mistakes" of her career, recalling why her rendition of the song 'Run On' never became a lasting part of 'The Oprah Winfrey Show', according to E! News.

Speaking on the recent episode of Keke Palmer's podcast 'Baby, This is Keke Palmer', Winfrey laughed off the memory after Palmer sang a line from the 1998 theme song.

"Girl, please," Winfrey said. "That is one of the mistakes of my career."

Although Palmer insisted it was "no mistake," Winfrey stood by her assessment and explained how the recording came about, according to E! News.

"So, what had happened was I was trying to decide, 'Am I gonna end the show or not end the show?' An...