Who made the most appearances on the covers of CMM?
Johnny Cash - Nine and one-half (he shared a cover with June Carter)
Dolly Parton & George Strait were featured on the covers 9 times
Willie Nelson 8 times and Waylon Jennings 7 times. I guess they liked the "Outlaws".

All were in color except for the January/February 1984 edition.

10th Anniversary Issue
30th Anniversary
Alabama (4)
Alan Jackson (5)
Anne Murray (2)
Barbara Mandrell (4)
Bill Anderson
Bill Monroe
Billy Ray Cyrus (2)
Brooks & Dunn (2)
Buck Owens
Burt Reynolds
Charley Pride
Charlie Daniels
Charlie Rich (2)
Chet Atkins
Clint Black (2)
Conway Twitty (2)
Country Stars
Crystal Gayle (2)
David Allan Coe
Dixie Chicks (2)
Dolly Parton (9)
Don Williams
Donna Fargo
Dwight Yoakam (5)
Eddie Rabbitt (2)
Eddy Arnold
Elvis (4)
Emmylou Harris (5)
Faith Hill (3)
Freddie Hart
Freddy Fender
Garth Brooks (5)
George Jones (4)
George Jones & Alan Jackson
George Jones & Tammy Wynette (2)
George Strait (9)
Glen Campbell
Hank Williams (2)
Hank Williams Jr (3)
Hee Haw Honeys
Jerry Lee Lewis
Jerry Reed (2)
John Anderson
Johnny Cash (9)
Johnny Cash & June Carter
Johnny Rodriguez and Tanya Tucker
Judds (2)
K T Oslin
Kenny Chesney
Kenny Rogers (3)
Kenny Rogers & Dottie West
Kris Kristofferson & Burt Reynolds
Kris Kristofferson & Rita Coolidge
Larry Gatlin
LeAnn Rimes
Lee Ann Womack
Linda Rondstadt
Loretta Lynn (4)
Mac Davis
Mark Chesnutt
Martina McBride (2)
Marty Robbins (2)
Marty Stuart (2)
Mary Chapin Carpenter
Mel Tillis
Merle Haggard (4)
Minnie Pearl
Oak Ridge Boys (2)
Olivia Newton-John
Pam Tillis
Patty Loveless
Porter Wagoner
Randy Travis (5)
Reba McEntire (5)
Ricky Skaggs (3)
Ricky Van Shelton (2)
Ronnie Milsap (3)
Rosanne Cash (2)
Roy Clark (2)
Roy Rogers
Sam Phillips & Sun Artists
Shania Twain
Statler Brothers (2)
Stella Parton
Steve Warnier
Tammy Wynette (4)
Tanya Tucker (3)
Tennessee Ernie Ford & Sandi Burnette
Tex Ritter
Tim McGraw (3)
Toby Keith
Tom T. Hall (2)
Travis Tritt
Travis Tritt & Marty Stuart
Trisha Yearwood (2)
Vince Gill (4)
Waylon Jennings (7)
Waylon Jennings & Willie Nelson
Wayon Jennings
Willie Nelson (8)

The Journal

Bill Monroe
Bob Wills (2)
Brenda Lee
Buck Owens
Carter Family (2)
Charlie Walker
Chet Atkins
Cindy Walker
Col Tom Parker & Elvis
Connie Smith
Conway Twitty
Dale Evans
Delmore Brothers
Doc Watson
Dolly Parton
Dottie West
Drifting Cowboys
Eddy Arnold (2)
Ernest Tubb
Faron Young
Fiddlin' Arthur Smith
Flatt & Scruggs
Floyd Tillman
Freddy Fender
Gene Autry
George D. Hay
George Jones (2)
Gid Tanner
Grandpa Jones
Hank Snow
Hank Thompson
Hank Williams (3)
Jack Greene
Jim Reeves
Jimmie Rodgers (2)
Johnny Paycheck
Kieth Whitley
Kitty Wells & Johnny Wright
Lefty Frizzell
Little Jimmy Dickens
Loretta Lynn
Louisiana Hayride
Louvin Brothers
Merle Haggard
Merle Travis
Monroe Brothers
Mother Maybelle & Carter Sisters
Nathional Barn Dance
Nitty Gritty Dirt Band
Patsy Cline (2)
Patsy Montana
Patti Page
Pee Wee King
Porter Wagoner
Ray Price (2)
Rosalie Allen
Roy Acuff (2)
Roy Rogers
Statler Brothers
Tennessee Ernie Ford
Tennessee Ernie Ford & Cliffie Stone
Texas Trubadors
Uncle Dave Macon
Vernon Dalhart
Webb Pierce
Willie Nelson

Other discographies I have done are at HOME PAGE