You can't have music without musicians. A person doesn't have to be famous to make good music. However, there are many famous musicians in the world. Some examples are Bruno Mars, Taylor Swift, Lady Gaga. There are also famous classical musicians such as Ludwig van Beethoven and Pyotr Ilyich Tchaikovsky. Even music before the 20th century happened to be incredibly amazing and memorable. However, the most popular songs were made in the time period we live in today.
