back number

back number — pop artist from JP.

Formed in 2004 in Gunma Prefecture, back number is a rock trio led by vocalist Iyori Shimizu, alongside bassist Kazuya Kojima and drummer Hisashi Kurihara. The…

Influence: 76.54% Fanbase: 77.43% Trending: 76.10% Career Level: Superstar

Top Brand Affinity

Highest overlapping lifestyle brand

Ajinomoto • 26.52% • Very Strong

As of 2025-09-30

3,170,054

Social Media Followers

As of 2025-09-30

00:00:00

Hours Airplay

2025-12-07 08:54:11 UTC

Genres

popj-poppopasian poprockj-rockpop rock

Biography

Formed in 2004 in Gunma Prefecture, back number is a rock trio led by vocalist Iyori Shimizu, alongside bassist Kazuya Kojima and drummer Hisashi Kurihara. The band gained early recognition by winning a competition to perform at the 2008 Shonan Music Festival Vol. 2, showcasing their midtempo rock style with folk influences and Shimizu's emotive vocals. In 2011, back number incorporated piano and violin into their sound, enhancing the emotional depth of their ballads such as "Omoidasenakunaru Sonohimade." The trio continued to evolve their music, introducing bell chimes and orchestral elements to create poignant compositions that explore themes of love and affection.

Top Brand Affinities

Report Date: 2025-09-30

back number cuts through with 18-24 & 25-34 audiences and consistency across JAPAN, INDONESIA, TAIWAN. A heavily male (57%) profile rewards creative that treats fans like insiders. Performance peaks on Tiktok with 109,500 avg views per post, while Instagram preserves the relationship between tentpoles. Affinity lines up with Ajinomoto, Aeon, L'Occitane, mapping to streetwear, music platforms, and lifestyle products. Net effect: campaigns that travel without heavy media.

Artist Affinity estimates how strongly an artist's audience overlaps with interest in specific brands, products, and categories. It is derived from aggregated social and behavioral signals—who fans follow, save, click, and engage with—normalized across platforms. Higher affinity suggests better partnership fit and higher likelihood that fans will respond positively to branded content or offers. Use it to shortlist natural brand partners and product concepts that feel authentic to the audience. Combine affinity with Connection Strength (ER) and reach to balance fit with impact. Treat affinity as directional—validate with creative tests and small pilots before scaling.

ER = (likes + comments + shares) ÷ audience per post ≥ 3.0% = Very Strong 2.0–2.99% = Strong 1.0–1.99% = Moderate < 1.0% = Low

How to read it: Pair ER with reach (views/followers) to gauge intensity and scale.

Connection Strength

Artist back number score 1.31% — Moderate bucket.

Brand: AjinomotoBrand: AeonBrand: L'Occitane

Followers:3,170,054

Engagements:41,530

Rate:1.3%

Posts:1,341

Avg Likes:41,088

Avg Comments:127

Avg Views:177,715

Audience Demographics & Key Stats

Metric	Value	Why It Matters
Social Snapshot	Followers 3,170,054 · Engagements 41,530 · Rate 1.3% Posts 1,341 · Views 177,715 · Avg Likes 41,088 · Avg Comments 127 · Avg Views 177,715	Combine reach (followers/views) with ER to size both impact and responsiveness.
Age Breakdown	18-24: 57% 25-34: 26% 13-17: 9% 35-44: 6%	Largest: 18-24 (57%); next: 25-34 (26%)
Gender Split	Female: 43% Male: 57% Non-binary/Other: 0%	Skews male (57%)
Top Countries	JAPAN (45%) INDONESIA (16%) TAIWAN (8%) THAILAND (8%) MALAYSIA (3%)	Top regions: JAPAN (45%), INDONESIA (16%), TAIWAN (8%)
Platform Engagement	Instagram: 32,993 avg likes/post · Tiktok: 109,500 avg views/post · Youtube: 68,215 avg views/post	Best reach: Tiktok 109,500 avg views; best engagement: Instagram 32,993 avg likes

Top Brand Affinities

Ajinomoto

Score: 26.52

Aeon

Score: 23.39

L'Occitane

Score: 13.45

Snoopy And The Peanuts Gang

Score: 10.13

Olympus

Score: 8.01

Vivienne Westwood

Score: 7.55

Daniel Wellington

Score: 7.54

UNIQLO

Score: 6.05

Shake Shack

Score: 6.00

Furla

Score: 5.78

Innisfree

Score: 5.18

Stüssy

Score: 5.15

Brand	Category	Score
Ajinomoto		26.52
Aeon		23.39
L'Occitane		13.45
Snoopy And The Peanuts Gang		10.13
Olympus		8.01
Vivienne Westwood		7.55
Daniel Wellington		7.54
UNIQLO		6.05
Shake Shack		6.00
Furla		5.78
Innisfree		5.18
Stüssy		5.15
Lindt		5.15
Shiseido		4.74
New Balance		3.77
GAP		3.77
ASICS		3.62
Dr. Martens		3.62
Kate Spade		3.56
Panasonic		3.38
The North Face		3.36
Summit Entertainment		3.33
G-shock		3.32
IKEA		3.09
Costco		3.08
Christian Dior		3.07
Lush		2.99
Gundam		2.87
Walt Disney		2.67
Yves Saint Laurent		2.65
Starbucks		2.45
Pokemon		2.45
Tiffany		2.17
Chanel		2.16
Converse		2.12
KitKat		2.04
Pixar		1.79
KFC		1.75
Vans		1.48
Tiffany & Co		1.44
Fujifilm		1.39
Apple		1.37
Mazda		1.32
GoPro		1.21
Supreme		1.20
Tommy Hilfiger		1.17
Puma		1.17
Amazon		1.15
Lexus		1.15
Polo Ralph Lauren		1.14