Marinade inspiration from FoodNetwork.com.

Marinade:
1c tequila (good tequila)
1/4c olive oil
1/4c lime juice (fresh is always best!)
¼ bunch chopped fresh cilantro
5 cloves chopped garlic (2.5 teaspoons of pre-chopped garlic)
2 teaspoon sea salt

Pour marinade on boneless chicken breast. Cover & refrigerate for 4+ hours.
Then toss chicken breast on BBQ until golden brown.