| ACT | COUNTRYCNT | EDITIONED | FESTIVALFES |
|---|---|---|---|
| Cassia | GBUnited Kingdom 2019 | | |
| Cirrus Minor | NLNetherlands 2019 | | |
| Callum Beattie | GBUnited Kingdom 2018 | | |
| Cari Cari | ATAustria 2018 | | |
| Chapelier Fou | FRFrance 2018 | | |
| Communions | DKDenmark 2017 | | |
| Carnival Youth | LVLatvia 2016 | | |
| Chloe Martini | PLPoland 2016 | | |
| Craig Gallagher | IEIreland 2016 | | |
| Catfish and the Bottlemen | GBUnited Kingdom 2015 | | |
| Chris Pinto | NLNetherlands 2014 | | |
| Coely | BEBelgium 2014 | | |
| Compact Disk Dummies | BEBelgium 2014 | | |
| Crystal Fighters | ESSpain 2011 | | |
| Curry & Coco | FRFrance 2011 | |