Rock stars and groupies are starting young these days. Help them prep for their Summer of alfresco music venues with an accessory. Regardless of whether your tot is rock royalty or not, his wee ears need to be protected when music is blaring at decibel levels that leave adults' heads ringing for days after an event. Kingston Rossdale, Apple Martin, and Milo Langdon have made headphones designed to protect toddler eardrums a concert fashion statement. Several tot-size, noise-reducing headphones are available for children over 6 months old, usually with enough cushioning to keep them from squeezing little heads. Here are a few of best ones we found.