Hom many musicians performed in the song "Flash"?
SELECT count(*) FROM performance AS T1 JOIN band AS T2 ON T1.bandmate  =  T2.id JOIN songs AS T3 ON T3.songid  =  T1.songid WHERE T3.Title  =  "Flash"
SELECT count(*) FROM performance AS T1 JOIN band AS T2 ON T1.bandmate  =  T2.id JOIN songs AS T3 ON T3.songid  =  T1.songid WHERE T3.Title  =  "Flash"
[{'count(*)': 0}]