Washington DC, July 15 -- American-Ghanaian singer-songwriter and musician Stevie Wonder has responded to a longtime rumour that he is not blind during a show in Cardiff, Wales, for his Love, Light and Song U.K. tour, reported E! News.

"I must say to all of you, something that I was thinking, 'When did I want to let the world know this?' But I wanted to say it right now," said Stevie during the concert, as captured in a fan's Instagram video. "You know, there have been rumours about me seeing and all that? But seriously, you know the truth."

"Truth is, shortly after my birth, I became blind," Stevie added, "Now, that was a blessing because it's allowed me to see the world in the vision of truth, of sight. See people in the spirit of the...