"You have to admit, I've been misunderstood," said singer-songwriter Yusuf Islam. "Even when I wrote 'Foreigner,' I started with the words, There are no words I can use because the meaning still leaves for you to choose . And so, the artist, to try and explain himself, has got to work a bit harder."

In a way, music was a by-product of a lifelong search, says Islam (also known as Cat Stevens), who met with us backstage in London.

I asked, "Do you get something out of playing on stage that you don't, playing alone?"

"I get scared," he replied. "A lot of human beings out there!"

But this musical giant who got his start in the 1960s, and is now in his late 70s, can still move a crowd.

Nicole Perry Ellis came to London's Hyde Park with her daughter Natasha to attend a Yusuf concert. She

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