Super-producer, hitmaker and 'The Voice USA' coach Pharrell Williams has revealed that getting to create a song for McDonald's to use in its promotional advertisements was a great opportunity because he was fired from the fast food chain three times in his youth. 

Williams created the 'I'm Lovin' It' hit for Justin Timberlake and it ended up becoming something of a McDonald's anthem, and he joked that it's as if he's come full circle with the company after his rocky history with it:

"I just couldn't believe that I got that opportunity... That was just like a crazy thing because I got fired from MCDonald's three times, not just once. Three different locations..."

"I was lazy. I was very lazy. (His manager would say), 'Williams, go mop the (floor).' And I'd go out there, but the problem is I'd get caught up in the music out... in the dining area, so the music would be playing and I'm like (dancing and singing to the songs). At a certain point they realised that I was no help. I was only good at eating the chicken nuggets."

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Watch footage of Williams here: