You're kiddin', 11, 14 and 15 years old??!!
"All under the age of 16, brothers Jonny, Robbie and Tommy Mizzone are from New Jersey, a US state that's better known for the rock of Bruce Springsteen than the bluegrass of Earl Scruggs. Nonetheless, the siblings began performing bluegrass covers, as well as their own compositions, at a young age. Here, they play three dazzling songs in three different keys, passing the lead back and forth from fiddle to banjo to guitar."