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The Biebs was in the middle of performing with special guest Ludacris Monday night when a transformer blew, prompting fans to fear the gig would be cut short due to the technical glitch.
However, Bieber remained unruffled and urged the crowd to sing his hit "Boyfriend" a capella for an epic finale - and the results so impressed the singer, he later took to his Twitter page to thank his audience.
"A night none of us will ever forget!! That is how u end an
#AllAroundTheWorld run!!! With no power for the last song...my fans sang it 4 me!"
"What I saw tonight! My fans! My Beliebers! They stepped up for me! I love u! I will never forget 2nite! That was the way a show should end.."
The gig was his final stop on a mini world tour, during which the teen sensation gave free shows around the globe for a forthcoming U.S. TV special.
Justin's new album, Believe, is available now.
Check out video from the show:
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