25901
Two songs that were written for the album , " Army of Love " and " Zero Gravity " , were released as promotional singles in 2010 and 2012 respectively prior to release of the album first official single in 2013 titled " The Lucky Ones " .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None