Here are some television commercials for COLOMBIANA you might be interested in.
Make sure to give it a try! It is delicious with just about any Colombian food. You can purchase it in just about any Latino market here in the US. It is also available in Europe at Carrefour. If you can't find it in your area, you can purchase it on-line.
Oh, and one more thing. Refajo is another Colombian drink. It is made with Colombiana. Refajo is a mixture of Colombiana soda and beer -- usually in equal parts.