Do you like to surprise your friends? Do you want to make them happy? If so, then you should download this app because it contains a lot of happy birthday songs. It's free and easy to use.

The best thing is that it contains more than 250 happy birthday songs with lyrics. So you will be able to sing with your friends or family at the same time. You can use the songs to send messages to your friends and family members.

The app is very easy to use, and it's designed for Android phones and tablets. It's free, so you will not need to pay a penny to use it.