1:21 PM PT -- Sources close to Nas tell us the rapper isn't pissed about the glitch ... we're told he's just happy it was resolved quickly. The pair have been on tour for quite some time now, and this is the first time it has happened.
Nas had the beat, the crowd and the stage, but one critical thing was missing -- at least for a good portion of his performance -- and still, he never skipped a beat.
The legendary rapper suffered a technical difficulty Wednesday night at Barclays Center in Brooklyn during his performance with Mary J. Blige. The duo was performing her track, "Love Is All We Need" featuring Nas, who, BTW, was rocking a Louis Vuitton Monogram Admiral Jacket.
It's a pricey piece of leather ... a cool $6,550. Those pockets tho!!!
Anyway ... the music was poppin' and Mary was dancing. But, as Nas begins, there's an audible silence. For a good 30 seconds you can see Nas rapping but can't hear him. Finally, he's like, "what the hell?!"
Someone in the crowd even yelled about the dead mic. Just as Nas realized the issue, his sound finally came back to life.
He kept the beat flowing like a pro, but someone on the crew got a lotta 'splainin' to do!