Put chicken breast in slow cooker. Pour salsa over the top. Add garlic, cumin, chili powder and salt. Stir slightly into salsa. Cover and cook on low for 6-8 hours or high for 3-4 hours.
Step two:
Shred chicken with forks and stir into the sauce in slow cooker.
Serve:
Serve with desired toppings. (I like shredded cheese, lettuce, tomatoes, fresh salsa, limes and sour cream).