It's difficult to believe Strange Euphoria is the first box set dedicated to Heart, one of classic rock's most celebrated acts. Luckily, longtime fans won't be disappointed with its unorthodox programming. For many of their biggest hits (including "Barracuda," "Magic Man" and "Crazy on You") Heart chose to include demo and live versions. These are definitely cool to hear. So are the myriad recordings from the Wilson sisters' other projects, namely Ann Wilson & The Daybreaks and The Lovemongers. This more acoustic-flavored stuff shows off West Coast folk-rock's profound influence on them.