Den 1. juni 2017 udkom deres tredje album, deres eneste udelukkende sunget på [[Lettisk (sprog)|lettisk]],<ref name="nbhap"/> ''Vienā vilcienā'',<ref name="parmuziku">{{Cite web|url=https://www.parmuziku.lv/zinas/latvija/carnival-youth-izdod-albumu-viena-vilciena-noklausies-pirmo-singlu-4856|title="Carnival Youth" izdod albumu “Vienā vilcienā". Noskaties pirmo video!|publisher=Parmuziku.lv|language=lv|date=1. juni 2017|access-date=26. juli 2020|archive-date=27. juli 2020|archive-url=https://web.archive.org/web/20200727075642/https://www.parmuziku.lv/zinas/latvija/carnival-youth-izdod-albumu-viena-vilciena-noklausies-pirmo-singlu-4856|url-status=dead}}</ref> og lige over to år senere, den 16. august 2019 udkom deres fjerde album, ''Good Luck''.<ref>{{Cite web|url=https://www.diena.lv/raksts/kd/muzika/_carnival-youth_-izdod-jaunu-albumu-_good-luck_-14224961|title=Carnival Youth izdod jaunu albumu Good Luck|publisher=[[Diena]]|language=lv|date=16. august 2019|access-date=26. juli 2020}}</ref>
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