Like Ouija boards, concerts bring people into physical contact with the disembodied voices that croon nightly at their bedsides. Groove to some supernatural beats with today’s GrouponLive deal: for $35, you get one ticket for a seat in sections 403–408 to Rock the Bells Presents Ms. Lauryn Hill and Nas at the Molson Canadian Amphitheatre on Thursday, September 8, at 6:30 p.m. (a $63.50 value before fees, or up to a $77.75 value online, including all Ticketmaster fees and HST). Doors open at 5:30 p.m.

Rock the Bells brings together world-class hip-hop luminaries to perform classic albums in their entirety. Lauryn Hill will essay her eponymous, chart-topping album The Miseducation of Lauryn Hill, with such hits as "Doo Wop (That Thing)" and "Ex-Factor" transporting fans back to halcyon days of youth or wood-bound years as mischievous puppets. Nas will perform his classic Illmatic with backup from AZ, Pete Rock, and DJ Premier as he spouts his erudite lyrics over ear-hooking beats. Fans can quench aural thirsts for rhythm and flow at the outdoor Molson Canadian Amphitheatre, basking in the cool night air or flashing peace signs to circling flying saucers.