Why does my Nissan Juke make a strange noise when I accelerate?

I recently noticed that my Nissan Juke makes a strange noise when I accelerate. It almost sounds like a high-pitched whining. What could be causing this and is it something I should be concerned about?

The most common cause of strange noises when accelerating is a worn out or loose belt. You should have your Juke checked by a mechanic to determine the exact cause and have it fixed as soon as possible.