Here's a listing of artists who have made hay for Tonio K. by recording songs he has written or cowritten. If you know of something I've left out, please e-mail me about it. And here's another page keeping track of some of K's writing efforts.

Special thanks to Paul Mason and John Cody for providing the info on Alias's cover of "Perfect World" (If I've got it straight, Alias was the rhythm section of Heart—minus the Wilson sisters—plus a couple of other guys. Whoever they were, may they rest in peace).
 Tonio K. and Charlie Sexton. Can you tell which is which?
Alias Perfect World (on the soundtrack albums for Don't Tell Mom, the Babysitter's Dead and Son-in-Law)
Arc Angels Paradise Cafe, Sweet Nadine, Always Believed in You, The Famous Jane, Spanish Moon, Too Many Ways to Fall
Mary Black Nobody Lives Without Love
Erin Bode You
T Bone Burnett The Strange Case of Frank Cash and the Morning Paper
Glen Burtnick Perfect World
Jonathan Butler Following the Light, What Would You Do for Love?
Carola Someday
Peter Case Vanishing Act, Why?
Adam Cohen Cry Ophelia, This Pain, Opposites Attract
Joe Cocker You Can't Have My Heart, You Took It So Hard, I'm Listening Now
Sara Evans Almost New
The Fabulous Thunderbirds How Do I Get You Back?
Al Green Love God (and Everyone Else) [on the Michael soundtrack]
Mark Heard Miracle
Benny Hester It's Over Love
Ronald Isley Count on Me, Love's Still the Answer
Steve Jones God in Louisiana
Wynonna Judd Don't Look Back
Low Millions (with Adam Cohen) Diary, Mockingbird
Jack Mack and the Heart Attack Cool Rain
Bette Midler It's Too Late
Aaron Neville I'll Love You Anyway (on the Beverly Hills 90210 soundtrack)
The Pointer Sisters
Celeste Prince Wherever You Are (on the Sweet November soundtrack)
Bonnie Raitt You
Nelson Rangell Love Is
Eddi Reader Nobody Lives Without Love (on the Batman Forever soundtrack)
The Runaways Saturday Night Special
Diane Schuur Never Take That Chance Again
Charlie Sexton Impressed, You Don't Belong Here, Battle Hymn of the Republic, Don't Look Back, Wishing Tree, Ugly All Day, Everyone Will Crawl, Plain Bad Luck & Innocent Mistakes, Home Sweet Home, Broken Dream
Jules Shear
Kenny Wayne Shepherd Chase the Rainbow
Patty Smyth
Phoebe Snow Merry Christmas, Baby (from Winter, Fire & Snow)
Michael Stanley Ugly All Day
Andrew Strong Half a Man
Swirl 360 Okay (from National Lampoon's Van Wilder)
Texas Twisters Paradise Café
Tanya Tucker Better Late Than Never
What If Perfect World
Vanessa Williams & Brian McKnight Love Is (on the Beverly Hills 90210 soundtrack)
The Williams Brothers Love Doesn't Ever Fail Us (on the Grace of My Heart soundtrack)
??? Perfect World (on the  My Boyfriend's Back soundtrack)