SELECT T2.name ,  count(*) FROM concert AS T1 JOIN stadium AS T2 ON T1.stadium_id  =  T2.stadium_id GROUP BY T1.stadium_id
For each stadium, how many concerts play there?
SELECT T2.name , count ( * ) FROM concert AS T1 JOIN stadium AS T2 ON T1.stadium_id = T2.stadium_id GROUP BY T1.stadium_id
select t2 . name , count ( * ) from concert as t1 join stadium as t2 on t1 . stadium_id = t2 . stadium_id group by t1 . stadium_id
For each stadium , how many concerts play there ?