14 Years Old

There aren't many groups that score a top twenty hit on the Billboard Hot 100 before anyone in the band is 15... but Dino, Desi and Billy did it.  Made up of Dean Martin's son Dino, Lucille Ball's son Desi, and their friend Billy Hinsche these kids had connections... their first audition was for Frank Sinatra.  Critics hated them, but teenagers loved them... and their biggest hit "I'm A Fool" is actually a decent song... but today it's very forgotten.
Here's a great clip of the band