Want to irritate the heck out of a loved one on their birthday? Well, this card is the card for you!

The "Joker Birthday Card" is not yet available in stores, but its popularity is definitely growing. The card says "HAPPY BIRTHDAY FOREVER..." inside, which is a very accurate statement once the activation tab is pulled. The card plays a birthday song for approximately 3 straight hours unless the card is DESTROYED. And, this card is not easily destroyed. It can be dunked in water and still play. People have even had to use a hammer to make it stop!

The card can be bought for $15 HERE. Here's a demonstration of it:

Via ABC News