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Bieber released his third studio album Believe on June 19 , 2012 , and it became his fourth chart topper in the United States , debuting at number-one on the Billboard 200 .
 Bieber
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bieber