flavored beer

Question

This isn't a pesah question... Are flavored beers like Mike's Hard Lemonade and Smirnoff Ice kosher?? The ingredients aren't really listed on the bottle or packaging...But they do have some kind of extra flavoring which I know some people say mean that it to be checked out....I havn't been able to find the ingredients of these "flavorings"....Do you have any insight? Thanks!