grant remote access of MySQL database from any IP address

I am aware of this command:

GRANT ALL PRIVILEGES
ON database.*
TO 'user'@'yourremotehost'
IDENTIFIED BY 'newpassword';

But then it only allows me to grant a particular IP address to access this remote MySQL database. What if I want it so that any remote host can access this MySQL database? How do I do that? Basically I am making this database public so everyone can access it.