Hot Tuna

HOT TUNA IN CONCERT: Blues rockers Hot Tuna may have come into being incidentally, but it's no accident that they continue to sell out tours year after year. Formed as a side project by members of Jefferson Airplane while frontwoman Grace Slick was recovering from throat surgery, the band quickly attained an identity of its own, outlasting its forebear and going on to achieve considerable success. The band has always been a live act first and foremost -- they've released more live albums than studio albums -- and they'll continue to bring down the house on their upcoming tour as they treat fans to classics like "Hesitation Blues" and "Hit Single #1." BACKGROUND SNAPSHOT: At the height of Jefferson Airplane's success in the late '60s, the band took a break from touring as lead singer Grace Slick recovered from vocal cord surgery. Eager to continue playing during the hiatus, several  of the band's…