Garage rock is like when you and your friends want to start a band but you don't have a fancy studio to record your music in. So, you go to the garage, which is like a little room attached to your house where you can park your car, and you start playing your instruments there.
Garage rock bands usually have a few guitar players, a bass player, a drummer, and sometimes a singer. They play a kind of music that is loud and energetic, with lots of guitar riffs and fast drumming.
The songs in garage rock are usually short and simple, with catchy hooks that you can sing along to. Some of the most famous garage rock songs are "Louie Louie" by The Kingsmen and "Wild Thing" by The Troggs.
Garage rock was really popular in the 1960s, when a lot of young people were starting their own bands and trying to create their own sound. Today, there are still lots of garage rock bands around, keeping the tradition alive and playing music that is fun, raw, and full of energy.