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They joined MTV ’s hip hop expert , Sway Calloway , a vanguard radio personality , record producer , hip-hop artist and MTV News Correspondent .
 MTV, Sway Calloway, MTV
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 MTV, Sway Calloway, MTV