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Why Michael Buble Unplugs Every Night on Tour 

Warwick Saint/Warner Bros. RecordsAfter a string of dates in his native Canada, Michael Buble's back in the U.S. for more shows, including two he played this week at New York's famed Madison Square Garden.  Michael's current show has plenty of bells and whistles, including huge video screens and tons of backup musicians, but he always ends the show with a tune he sings a cappella and "unplugged."  He says it's a tradition that he started more than a decade ago...thanks to an onstage disaster.

As Michael tells it, about 12 years ago, he was performing for a few hundred people at a small place in Hollywood when suddenly, the soundboard shorted out and he lost all power to his microphone while crooning "My Funny Valentine."  But instead of panicking, he turned it into an opportunity. 

"It was either stop or keep going," he tells ABC News Radio. "And I turned to the band and told them to hush, and I sang the rest of the song a cappella, you know, obviously with just my voice, no amplification. And, you know what? It was a really tender, touching, goosebump-inducing moment."

"It was a mistake but I felt that I had something," he continues. "And from that night on I ended every show the same way, and I will end every show for the rest of my life in that way."

On this tour, his final unplugged number is Leon Russell's classic "A Song for You," which Michael feels is a great choice, since it's sung from the point of view of a musician, and includes lyrics like, "I've acted out my life in stages/with ten thousand people watching/But we're alone now and I'm singing this song for you."

"I love getting to end with "A Song for You" by Leon Russell because Mr. Russell, who's a genius, wrote a song that just feels so perfect for that moment," Michael tells ABC News Radio. "Really, it just speaks so adequately to what I feel about the audience in that moment." 

Michael's U.S. tour dates end August 3 in Austin, Texas. Then he'll travel to Mexico, Central America, South America, Europe and the U.K., where he'll finally wrap up his epic world tour in December.

Copyright 2014 ABC News Radio

ABC News Radio