When country music legend Alison Krauss and Led Zeppelin frontman Robert Plant decided to collaborate in 2007, the music world waited with bated breath to see what this dynamic partnership would create. Raising Sands, the fruit of this musical union, is a revolutionary blend of folk, rock, bluegrass, soul and blues and is a chart-topping success. Tomorrow, these two music greats perform hits off their album at Merriweather Post Pavilion, 10475 Little Patuxent Parkway, Columbia. The show starts at 6:30 p.m. Tickets are $40-$125. Call 410-715-5550 or 410-547-7328 or go to tick etmaster.com.