What kind of alcoholic drink are you talking about?
I wonder, since you talk about these as trendy, if perhaps you are talking about what are called "alcopops" in the UK (and elsewhere, according to Wiki)?
Alcopop is a derogatory term describing certain flavored alcoholic beverages, including:
malt beverages to which various fruit juices or other flavorings have been added,
beverages containing wine to which ingredients such as fruit juice or other flavorings have been added (wine coolers), or
beverages containing distilled alcohol and added ingredients such as fruit juices or other flavorings.
Alcopops tend to be sweet and served in small bottles (typically 330 ml in Europe and 355 ml, the normal size of a soda pop can, in North America), and between 4% and 7% alcohol by volume. Wikipedia