70930
Background On December 27 , 2012 , the first song was released in promotion of the mixtape titled " Nothin ' On Ya " featuring Wiz Khalifa .
 Wiz Khalifa
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Wiz Khalifa