Look Who's Playing a Martin
Conan O'Brian
Bryan Adams
John 
Franciante
Keller Williams
Ed McMeen
David 
Mallett
Michael Nesmith
John Gorka
John Goldie
Norah 
Jones
Phil Wickham
Woody Mann
Joe Bonamassa
Sophie B. Hawkins
Samantha 
Crain
Joaquin Phoenix
Frank Hamilton
Dick & Jimmy Dale
Mason Profitt
Harry Chapin
Charlie 
Waller
Sean 
Lennon
Hank Williams

Avett Brothers
​George 
Harrison
Richie
 Sambora
Buddy Holly
Danny Schmidt
Griffin House
Ian Anderson
Jared Leto
Jewel
Ray Davis
Keith Richards
Steve Winwood
Justin Bieber
Jon Anderson
Jason Isbell
Ricky Skaggs
Keith Urban
Phil Keaggy
Bill Monroe
Ziggy Marley
Bob Seger
Alex & Eddie Van Halen
Chris
Cornell
Jeff Moore