Justin Bieber concert at Staples Center
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Justin Bieber at Staples Center

Eighteen-year-old pop star Justin Bieber. (Lawrence K. Ho / Los Angeles Times)
The singer made his debut with the song “Baby” featuring rapper Ludacris in 2010. (Lawrence K. Ho / Los Angeles Times)
The singer descended from above the stage attached to a pair of enormous steampunk-style wings.  (Lawrence K. Ho / Los Angeles Times)
Then he and his eight-piece band launched into “All Around the World,” the throbbing opener from this year’s “Believe,” while a crew of dancers raced through the crowd hoisting flags from various countries.  (Lawrence K. Ho / Los Angeles Times)
Fans swooning during a ballad. (Lawrence K. Ho / Los Angeles Times)
The singer made headlines when he kicked off his tour in Arizona when he threw up onstage.  (Lawrence K. Ho / Los Angeles Times)
The projectile moment happened during “Out of Town Girl” at a Bieber concert in Glendale, Ariz.  (Lawrence K. Ho / Los Angeles Times)
Bieber made light of it after the Arizona gig, joking on Twitter that “milk was a bad choice,” a quote of from the Will Ferrell comedy “Anchorman.” (Lawrence K. Ho / Los Angeles Times)
Bieber’s 2012 album “Believe” has sold 887,000 copies in the U.S., according to Nielsen SoundScan. (Lawrence K. Ho / Los Angeles Times)
Briskly paced and intricately choreographed, this high-tech pop production (with a mixture of live and prerecorded singing) emphasized the idea of Bieber over the real-life person. (Lawrence K. Ho / Los Angeles Times)
The 90-minute show included guest appearances by Carly Rae Jepsen, who opened the concert, and Jaden Smith. (Lawrence K. Ho / Los Angeles Times)
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