How many tours did metallica go on?

Metallica has embarked on over 20 tours throughout their career, covering various continents and cities all over the world. Here are some of the notable tours undertaken by Metallica:

1. Kill 'Em All for One Tour (1983-1984)

2. Ride the Lightning Tour (1984-1986)

3. Master of Puppets Tour (1986-1987)

4. Damaged Justice Tour (1988-1989)

5. Wherever We May Roam Tour (1991-1993)

6. Shit Hits the Sheds Tour (1994)

7. Poor Touring Me Tour (1996-1997)

8. World Magnetic Tour (2008-2010)

9. WorldWired Tour (2016-2018)

10. M72 World Tour (2019-present)

This list is not exhaustive, as Metallica has also participated in numerous festivals, co-headlining tours, and special events throughout their career.