For a band that has struggled to be relevant for the past two decades, Heart sure played with plenty of confidence last night at Blossom. Perhaps the band's recent (overdue) induction into the Rock and Roll Hall of Fame and Museum had something to do with it. Ann Wilson and her guitar slinging sister Nancy Wilson started their 90-minute set with the hard-rocking “Barracuda” and then ratcheted up the energy as they delivered hits such as “What About Love” and “Magic Man.” A by-the-numbers power ballad, “What About Love” benefited from Ann Wilson's strong vocal performance; she sang it with such fervor, it really came to life. The set featured its share of duds — the acoustic “Dog & Butterfly” suffered from a perky keyboard riff that turned it into something saccharine, and “These Dreams” sounded outdated, even though the duo introduced it as a song that had survived the ‘80s. But the Wilsons and their solid four-piece band ended strong with an inspired rendition of “Crazy on You” that Ann Wilson sang just as powerfully as she did when she recorded it some 35 years ago. In fact, throughout the performance, her voice sounded just as vigorous as it did on the studio albums from the '70s.