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Shortly after the singer was allowed to leave Los Angeles International Airport, where he was held for nearly four hours by U.S. Customs yesterday, the 20-year-old Canadian pop star took to Twitter and wrote "Life is good. Keep it positive always."
He later added, "Everybody spread the love and positivity."
Bieber was detained on Thursday after touching down at LAX on an Air Singapore flight from Tokyo, where he had been seeing the sights and spending time with his mother, Pattie Mallette.