Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE artist ( name VARCHAR, country VARCHAR, artist_id VARCHAR )
TABLE: CREATE TABLE exhibition ( artist_id VARCHAR )

### Question ###
What is the name and country for the artist with most number of exhibitions?

### Accurate SQL ###

SELECT T2.name, T2.country FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id GROUP BY T1.artist_id ORDER BY COUNT(*) DESC LIMIT 1