A Database Error Occurred

Error Number: 1054

Unknown column 'brassens' in 'where clause'

SELECT distinct(ep.user_id), CONCAT(u.fname, ' ', u.lname) as fullname, LCASE(u.fname) as fname FROM event_participants ep LEFT JOIN dx_users u ON ep.user_id = u.id WHERE ep.event_id in (brassens) ORDER BY fname