'Call Me Maybe' played with bottles - video
The group made of young men hailing from Denmark use self-invented bottle instruments in all sorts of sizes and shapes to orchestrate this unique musical cover.
The Bottle Boys formed in 2005, with a handful of "modest bottle whistles" but since then the concept has kept on growing.
The Danish band now adopt a full drum kit only made of bottles.
In their own words, The Bottle Boys' main goal is to "breath life into the party".