Klerkx and the Secret has had 1 concert.

Klerkx and the Secret is most often considered to be Jam Band, Progressive Bluegrass, and Jamgrass.

The last Klerkx and the Secret concert was on January 13, 2011 in Groningen, Groningen, Netherlands. The bands that performed were: Ben Howard / James Vincent McMorrow / Agnes Obel / Selah Sue / Junip / The Staves / Delorean / Graffiti6 / Dry the River / Balthazar / Cocoon / Kvelertak / This Is The Kit / Kraantje Pappie / Laura Jansen / The King Blues / Monarchy / De Staat / Absynthe Minded / Blaudzun / The Crookes / Adept / Malika Ayane / Wolf People / Anni B Sweet / Moss / Frankie & The Heartstrings / Moddi / Hundreds / Ólöf Arnalds / The Black Atlantic / LaBrassBanda / Go Back to the Zoo / Giulia y Los Tellarini / DeWolff / Ost & Kjex / Alamo Race Track / The Van Jets / Heathers / Tim Knol / Vinnie Who / Mamas Gun / Black Spiders / Sore Losers / Wende / Daily Bread / Destine / Aucan / Acid Washed / Britta Persson / Dikta / Airship / K-X-P / Murder / Kellermensch / Islet / The Inspector Cluzo / Awkward I / OY / Paula & Karol / Saint Lu / Retrograde / Ellen and the Escapades / Sean Riley & The Slowriders / Oquestrada / Bye Bye Bicycle / Wallace Vanborn / Broken Glass Heroes / Who Knew / Gable / Paceshifters / Thee Attacks / Curry and Coco / Death Letters / Golden Kanine / My Bubba & Mi / Drums Are for Parades / Filewile / Ginga / Dufresne / Shaking Godspeed / Coldair / Diversidad / Youthless / Kyst / The Latebirds / Indigo Tree / Knalpot / Endless Dark / EZ Basic / Cuibul / Charlie Jones' Big Band / Aides / Eklin / Akaga / Klerkx and the Secret / Eurosonic / Mesta / Partyharders / Traumkapitän.