シンガーソングライター 岩佐一成
Kazunari Iwasa (@kazunariiwasa), a singer-songwriter from Japan, makes original songs and acoustic performance videos. The channel has about 1,940 subscribers and a median of roughly 2,000 views per video, uploading about 11 times a year. Sponsored integrations are estimated at $150 to $250 per video, since Shorts make up 29 percent of uploads.
Emotive Japanese singer-songwriter with a steady, loyal listener base
- Median of about 2,000 views per video across 61 uploads
- Top video reached 15,868 views, showing reach beyond the core audience
- Shorts make up 29 percent of uploads, useful for low-cost clips
Brand fit report
Content
- Formats
- official music videos, acoustic performance videos, short-form clips
- Tone
- emotional, heartfelt
- Language
- Japanese
- On camera
- Yes, talking head
- Production
- Clean, lightly edited
- Typical length
- 4 to 5 minutes
Audience
Commercial
- Brands seen
- None yet
- Categories promoted
- None yet
- Affiliate links
- No
No sponsorship disclosures found in the last 50 videos
Suitability GARM Brand Safety Floor + Suitability
Family friendly
Videos cover grief and family memories, such as 'ことづて' about a grandfather's death, with no unsafe content seen.
We classify content, never people. No age, gender, ethnicity, religion or political views are inferred about the creator. Audience figures are estimates unless marked verified. Creators can correct anything on their profile.
Platforms
Benchmark score: 52 / 100
Public rule, same for everyone. How it works.
Recent videos
▶ことづて 岩佐一成 · 1.6k views
▶Music B.B.JAPAN 収録インタビュー!! · 245 views
▶岩佐一成/優しさは陽だまりみたいで(official Music Video)ラジオドラマ「下町やぶさか診療所」ED · 5.3k viewsLast three uploads, latest 40 days ago.
_______________________ シンガーソングライター 岩佐一成 カタルシス ボイスと称され 聴く人の涙を誘う心に響く歌声で これから 新しい風を吹かせるに違いない シンガーソングライター 幅広いテーマの楽曲があり 老若男女問わず人気を集めている ▼SNS 《Instagram》 https://www.instagram.com/kazunari_iwasa/?hl=ja 《TikTok》 https://www.tiktok.com/@kazunari_iwasa?_r=1&_t=ZS-96GbsjgrAZQ
About シンガーソングライター 岩佐一成
Kazunari Iwasa is a Japanese singer-songwriter who posts original songs, official music videos, and acoustic performance clips on YouTube. The channel uploads about 11 times a year, with recent releases tied to his major-label debut and radio drama tie-in songs. Website pages did not mention his profession, so this profile relies on channel data.
The channel has about 1,940 subscribers and a median of around 2,000 views per video, with occasional spikes above 15,000. Viewers are estimated to be mostly Japanese-speaking adults across a wide age range, drawn to emotional songwriting. Audience figures are estimates and not verified.
No sponsored content was detected. A sponsored integration is estimated at $150 to $250 per video, which works out to roughly $20 to $35 CPM against median views, compared with the typical $10 to $30 CPM for paid ads. Brands seeking a warm, emotional Japanese audience should consider booking him.
Written from シンガーソングライター 岩佐一成's public YouTube profile, platform data and web mentions. Numbers updated 2026-10-19. シンガーソングライター 岩佐一成 can edit or remove this page at any time.
Questions about シンガーソングライター
How much does Kazunari Iwasa charge for a sponsored video?
Based on his median of about 2,000 views and the long-form rate rule, a sponsored integration is estimated at $150 to $250 per video. This is an estimate from channel metrics, not a published rate card.
What does Kazunari Iwasa post about on YouTube?
He posts original songs, official music videos, and acoustic performance clips, often about emotional themes like family, memory, and life's ups and downs. Most content is in Japanese.
How do I contact Kazunari Iwasa for a brand deal?
Contact details unlock on Starbooked for $0.80. Boosted creators can be booked through Starbooked directly.
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