Sii wad qodobkaan - Markii uu jiray 13 sano, De Blue wuxuu bilaabay inuu ka dhex heeso kooxo. Intii lagu guda jiray waqtigaas kooxdeedu waxay ka soo muuqatay dhowr bandhigyo hibo, kuwaas oo ay ku guuleysteen kaalinta 3aad ee Dagaalkii Bandhigyada ee ay soo qabanqaabisay Red Bull. Sanadkii 2011, De Blue wuxuu soo galay iftiinka kadib markii uu ku guuleystay codbixinta YouTube ee bandhigga hibada Austrian The Voice 2011. Intii u dhaxeysay 2014 iyo 2016 waxay sidoo kale ku guuleysatay goobta sidii bandhig furitaan ah ee Kitzbühel Musikfestival. De Blue sidoo kale waxay ahayd shaqadii ugu dambeysay ee Donauinselfestes 2016, halkaas oo ay kula soo bandhigtay Camo & Krooked Masraxa FM4. Waxay sidoo kale ku guuleysatay dhowr bandhig oo ka dhacay ProSieben-Puls 4 GameChanger Festival. De Blue wuxuu sidoo kale lahaa sharafta ah inuu noqdo Austrian-kii ugu horreeyay ee heesta heesta qaranka "cusub" ee Austria ee Olombikada Dhalinyarada Xagaaga ee 2012
Innsbruck ayaa lagu qabtay. Sanadkii 2014, De Blue waxay codsatay The Voice of Germany, halkaas oo ay noqotay heesaha ugu horreeya ee Tyrol ah ee gaadhay Top 40, taasoo ka dhigaysa kooxda Max Herre, waxayna noqotay Austrian-kii ugu horreeyay ee gaadhay wareegga Showdown ee bandhigga. Horraantii 2016, De Blue waxaa u magacaabay idaacadda Austria ee ORF inay noqoto bandhig wildcard ah oo lagu doorto tartanka Eurovision Song Contest ee dalka. Waxay soo bandhigtay oo sii deysay heesta "U dhow Qorraxda", laakiin ma aysan gaarin finalka. Laba sano ka dib, De Blue waxay mar kale isku dayday tartanka Eurovision Song Contest, halka markan ay ka qeyb qaadatay xulashada Sammarinese. Waxay ku dhawaatay, waxayna ku dhameysatay kaalinta 2aad, heesteeda "Out of the Twilight". Sanadkii 2019, De Blue waxaa lagu casuumay inuu u soo bandhigo sidii farshaxan martida u ah barnaamijka TV-ga Austria ee Dancing Stars. Waxay sidoo kale ku soo bandhigtay Life Ball oo ay la socoto labada ciyaartoy ee Electro-Swing Cirque De La Nuit. Bishii Ogosto 2019, waxay ka soo qeyb gashay xafladda heesaha Romania ee Cerbul de Aur ee Brașov, waxayna ku guuleysatay abaalmarinta koowaad.