ROCK | HEADS UP
Marc Cohn and Suzanne Vega
Marc Cohn, best known for the song "Walking in Memphis," and Suzanne Vega, who's probably still best known for "Luka," share the stage at the South Shore Music Circus tomorrow and at the Cape Cod Melody Tent on Thursday. Most likely, they'll spend most of the gig playing from their latest albums, Cohn's "Join the Parade," and Vega's "Beauty & Crime." Both shows at 8 p.m. $35.25 to $50.25. South Shore Music Circus: 130 Sohier St., Cohasset, 781-383-9850. Cape Cod Melody Tent: 21 West Main St., Hyannis, 508-775-5630. www.ticketmaster.com. 