Watch Let's Go Karaoke! Episode 4 “Crimson” online free in HD on Anime4Soul. This episode first aired on August 14, 2025. Use the SUB / DUB switch above the player for English subtitles or the English dub, and the language menu for French and Portuguese.

Previous: Let's Go Karaoke! Episode 3. Next: Let's Go Karaoke! Episode 5. See all 5 episodes, characters and voice actors on the Let's Go Karaoke! page.