What are the names of the three artists who have produced the most songs, and how many works did they produce?
SELECT T1.artist_name ,  count(*) FROM artist AS T1 JOIN song AS T2 ON T1.artist_name  =  T2.artist_name GROUP BY T2.artist_name ORDER BY count(*) DESC LIMIT 3
SELECT T1.artist_name ,  count(*) FROM artist AS T1 JOIN song AS T2 ON T1.artist_name  =  T2.artist_name GROUP BY T2.artist_name ORDER BY count(*) DESC LIMIT 3
[{'artist_name': 'Topu', 'count(*)': 1}, {'artist_name': 'Shrikanta', 'count(*)': 1}, {'artist_name': 'Prity', 'count(*)': 1}]