Blurgrass is a type of country music that's quick and lively. Bluegrass is played with banjos and guitars.
About a hundred years ago, William Smith Monroe was born near Rosine, Kentucky. His style of music, which we call bluegrass today, probably got its name from the name of his band, the Blue Grass Boys, which was in turn named after his home state of Kentucky, the Bluegrass State. Bluegrass is similar to other country music with the exception of tempo: it's much faster. This makes bluegrass popular as dance music: bluegrass makes you want to move your feet.