Go ahead.... give it a try ;-) 

BEER MARGARITAS! 

Ingredients:

* 1 (12 ounce) can frozen limeade concentrate (semi-thawed)

* 12 fluid ounces tequila

* 6 fluid ounces 7-up

* 6 fluid ounces cold water (or use 12 fl.oz. Seven-Up or water)

* 12 fluid ounces beer

* ice (lots of ice!)

* 1 lime (cut into wedges)

Directions:

1 - Pour the limeade, tequila, Seven-Up, water and beer into a large glass pitcher; stir with a long-handled spoon until completely blended and the frozen limeade has completely melted.

2 - Add in lots of ice.

3 - Adjust with extra water if the mixture is too sweet.

4 - Serve each glass with a lime wedge on the end.

Courtesy of Food.com