20178
The mixed martial artists Fabrício Werdum and Dave Herman have used the song as their entrance music .
 Fabrício Werdum, Dave Herman
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Fabrício Werdum, Dave Herman