Jutsin Bieber

Justin Bieber performs on the stage in concert at MasterCard Center on September 29, 2013 in Beijing, China

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Teen superstar posts new song hours after cutting a show short due to food poisoning.

Last week, Justin Bieber described a "Bad Day" -- one filled with heartbreak and regret -- in his 'Music Mondays' series. This week, on sixth entry "All Bad," the pop superstar is strictly defensive; his romance might have ended, but it wasn't all his fault.

Aside from the frowny-face emoticon that composes its single artwork, "All Bad" is highlighted by thudding drums and a particularly unhappy vocal performance from Bieber, who sounds like he's ready to flip over a table before reeling back his emotion on the chorus. "No, no, I ain't all bad/All bad, all bad," he croons over the soothing R&B arrangement, his voice drifting into the ether as the song winds down.

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Justin Bieber's ongoing tour of South America hasn't been "all bad," but it also hasn't been pretty. One week after ending a show early in Brazil after getting hit with a plastic bottle, as well as being spotted exiting a brothel in the country, Bieber ended a show early in Buenos Aires, Argentina this weekend, drawing boos from the crowd. "I'm not feeling too good, I think I'm out of energy," Bieber told his audience, according to the Associated Press, before later revealing that he was suffering from food poisoning.

The 19-year-old music sensation will address his tumultuous touring year in "Believe 3D," the follow-up to 2011's "Never Say Never 3D," set for release on Christmas Day.

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