How do you play the song 'Amazing Grace' on a harmonica?

If you are on a 10 hole harmonica it goes like this:

6 7 8 7 8 -8 7 -6 6

6 7 8 7 8 -8 9

8 9 8 7 6 -6 7 -6 6

6 7 8 7 8 -8 7

If I were you, I'd play it on the key of G because if it's on the key of C it gets hard to breathe. But you can play it in any key; that's the beauty of it.