Sarah McLachlan is having a big year. Right now, the Grammy-winning Canadian superstar is in the middle of a massive North American tour to celebrate the 30th anniversary of her breakthrough album, “Fumbling Towards Ecstasy.” This September, she’ll also be inducted into the Canadian Songwriters Hall of Fame. Sarah joins Tom to talk about being back on the road for the first time in nearly a decade, what she thinks about some of her biggest hits, and why she says her daughters finally think she’s cool.