Grammy-winning a cappella at NCC

Joy of '6'Take 6, a Grammy-winning, Nashville-based a cappella jazz group, has won acclaim for its seamless vocal harmonies and the contemporary spin it puts on vintage sounds. Take 6 performs at 8 p.m. Saturday, Feb. 20, at North Central College's Wentz Concert Hall, 171 E. Chicago Ave., Naperville. $30-$40. Call (630) 637-SHOW or go to northcentralcollege.edu.Red-hot bluegrassSplit Lip Rayfield, a rockin' bluegrass outfit from Wichita, Kan., specializes in combining traditional acoustic/country sounds with elements of punk and rock. The group continues to rip the roof of every joint it plays, so this would be a good pick this weekend.Split Lip Rayfield plays with Siderunners and the Blind Staggers at 9 p.m. Saturday, Feb. 20, at the Double Door, 1572 N. Milwaukee, Chicago. $12. Go to doubledoor.com.Outlaw legendsKris Kristofferson and Merle Haggard, old-school country-music icons, will perform in the suburbs this weekend. Both are known for creating unadorned, gritty songs full of honest stories about life, prison, drinking, love and freedom. Here's a chance to see two legends on stage.7:30 p.m. Sunday, Feb. 21, at the Rosemont Theatre, 5400 N. River Road, Rosemont. $35-$65. Call Ticketmaster at (800) 745-3000 or go to ticketmaster.com.