A leftist icon of the ’60s, Janis Ian began writing songs at an early age. At 15, she had a hit with “Society’s Child,” a tune about an interracial romance that was consequently banned at many radio stations (but got significant airplay in Cleveland). Controversy notwithstanding, Ian went on to have other hits, like the Grammy-winning “At Seventeen.” Her 2008 autobiography chronicles the singer’s coming out, as well as a 10-year period during which she didn’t release an album. She’s spent recent years purging her back catalogue (and issuing the occasional studio album) and for her current tour is sharing the headlining spot with singer-songwriter Karla Bonoff, who has penned songs for Bonnie Raitt, Wynonna Judd, and Linda Ronstadt. Ian and Bonoff will perform separately and then convene for a segment during which they share the stage. (Jeff Niesel)