81698
In 2000 , the band recruited Queen guitarist Brian May to add some guitar flourish to a cover of Pink Floyd 's " Have a Cigar " , a song which Foo Fighters previously recorded as a b-side .
 Queen, Brian May, Pink Floyd, Foo Fighters
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Queen, Brian May, Pink Floyd, Foo Fighters