Wikipedia:Articles for deletion/Castlecomer (band)
As others noted, a quick google search found many reliable articles for this band, which is signed on a major label. This passes  criteria 1 and 5. The article still needs serious revision, like adding in new sources and following . Also something to note is that
— User:Writer1977, 01:24, 19 November 2018 (UTC)
Stance: keep
Cited policy: WP:NMUSIC||WP:LEAD (Wikipedia:Notability)