Wikipedia:Articles for deletion/Sławek Jaskułke
I've tracked down a couple of good sources, added them, which along with his performances and work, is sufficient to satisfy  
— User:Nosebagbear, 12:37, 5 August 2019 (UTC)
Stance: keep
Cited policy: WP:NARTIST||WP:SINGER (Wikipedia:Notability)