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 musical ( musical_id number, name text, year number, award text, category text, nominee text, result text )
TABLE: CREATE TABLE actor ( actor_id number, name text, musical_id number, character text, duration text, age number )

### Question ###
What are the names of musicals who have at 3 or more actors?

### Accurate SQL ###

SELECT T2.name FROM actor AS T1 JOIN musical AS T2 ON T1.musical_id = T2.musical_id GROUP BY T1.musical_id HAVING COUNT(*) >= 3