Issei Mamehara

豆原一成（Issei Mamehara）是日本歌手兼演员，以11人男子组合JO1的Center和主舞而闻名。他在2019年因赢得《Produce 101 Japan》第一季第一名而走红，获得超过一百万张选票。自2020年3月JO1出道以来，该组合发行了多张排行榜冠军专辑，并在日本举办了售罄的巨蛋巡演。豆原还建立了个人演艺事业，特别是在《假面骑士Revice》系列中饰演假面骑士Chimera。粉丝们喜爱他阳光、充满活力的个性和强劲的舞姿，这使他在J-pop界脱颖而出。截至2026年，他继续与JO1一起进行七周年纪念活动，并追求演艺角色。[编辑]

豆原一成在冈山县真庭市的一个乡村长大。他小时候很活跃，打过棒球、游泳，甚至在小学时参加过相扑比赛。他对舞蹈的兴趣始于观看姐姐的舞蹈课；后来在电视上看到GENERATIONS from EXILE TRIBE后，成为该组合的粉丝。初中二年级时，他进入了一所专攻1990年代嘻哈舞蹈的学校。到高中一年级时，他已经在该校担任儿童舞蹈教练。他曾在寿司店兼职，从中学会了向顾客微笑的价值，这一习惯也带到了舞台上。他最初就读于普通高中，但在开始演艺生涯后转学到函授学校，并于2021年3月毕业。[编辑]

豆原的突破是在2019年参加《Produce 101 Japan》时。他精湛的舞技和灿烂的笑容使他在决赛中获得第一名，成为出道组合JO1的Center。该组合于2020年3月4日发行了首张EP《Protostar》，并迅速获得了大量粉丝。豆原于2021年凭借电视剧《Short Program》首次出演，并在2022年的《假面骑士Revice》电影《Battle Familia》中饰演大谷希望/假面骑士Chimera。JO1于2022年举行了首次巨蛋巡演，他们的单曲《Tiger》在2023年成为百万流媒体热曲。2025年，豆原开设了个人Instagram账号，并拍摄了新的电视剧角色。截至2026年，JO1正进行七周年纪念活动，豆原继续为假面骑士系列配音。[编辑]

豆原一成被广泛视为JO1的“阳光”成员，以其充满活力、略带笨拙和讨喜的开朗性格而闻名。他的标志性风格融合了街头舞蹈时尚与高端设计师单品，经常搭配醒目的运动鞋。媒体和粉丝强调他强劲的舞蹈技巧、快速的唱功提升以及标志性的“aegyo”表情。JO1的官方粉丝名是“JO1ers”，粉丝们每月5日和30日庆祝“Mame Day”。在社交媒体上，他的语气俏皮且充满表情符号，经常与粉丝直接互动。他保持着与日本偶像文化相符的健康形象。[编辑]

Issei Mamehara is currently evaluated by the iFANN Global Fame Engine but does not hold a placement in the published rankings. While he commands a massive following as the center of JO1, the system registers his current standing as unranked within the top 1,000 global scope for this evaluation period. His influence remains deeply rooted in the Japanese idol sphere and specific international markets rather than a broad global numerical tier. The collective support behind him is channeled through the official group fandom known as "JO1 CHUM," or simply "Chum." Within this large organization, fans affectionately refer to him by his character nickname, "MAMEchi," creating a distinct sub-identity within the larger community. This fanbase demonstrated formidable organizational power during his pre-debut phase on Produce 101 Japan, where they drove his victory to the number one spot out of 96 contestants. Their mobilization established him as the leader of the debut lineup, a status that required intense voting campaigns and sustained engagement. Today, the Chum remain active in promoting JO1's global reach, including recent high-profile expansions into India where fans facilitated meetings with cultural icons. Although no specific, isolated campaigns solely dedicated to Mamehara are documented distinct from general group activities, his personal projects like the show PRODUCED by MAMEHARA ISSEI serve as direct platforms for interaction. Fans have also shown significant anticipation for his acting milestones, such as his casting in the live-action adaptation of Bad Boys, proving their dedication extends well beyond music charts.[编辑]

Known affectionately as 'Mame,' a name meaning 'bean' in Japanese, Issei Mamehara maintains an impressive collection of over 80 pairs of sneakers, often mixing streetwear with high-end designer pieces. His skillset is remarkably diverse, ranging from 1990s hip-hop dance and baseball to swimming and doing Kamen Rider impressions. He once humorously noted that if he made the top 11 on Produce 101 Japan, he would undergo waterfall training for spiritual cleansing, a promise fans still recall fondly. A self-proclaimed Mercari enthusiast, he loves browsing the secondhand marketplace for unique clothing finds and spends his free time creating TikToks. Beyond his hobbies, he cites Alan Shirahama as his favorite member of GENERATIONS. Among his most legendary moments is his elimination-free run to the top of Produce 101 Japan, securing the number one spot and cementing his status as the group's leader. Another defining story involves his casting as the lead in the live-action film Bad Boys, scheduled to release on his birthday, May 30, 2025, a detail fans celebrate as a symbolic career milestone. His journey also includes a memorable cultural exchange visit to India, where he and fellow member Shosei Ohira met music legend A.R. Rahman, sharing lighthearted moments about Salman Khan dance moves that became part of the group's international lore.[编辑]

豆原一成有一个姐姐。他在冈山县真庭市与父母和姐姐一起长大。母亲做的猪肉汤是他最爱的安慰食物之一。他尚未公开父母的姓名或职业。截至2026年，他住在日本，未透露有宠物。[编辑]

豆原一成与另外十名成员共同组成JO1：Ren、Ruki、Keigo、Shion、Shosei、Syoya、Sukai、Takumi、Junki和Sho。他视GENERATIONS from EXILE TRIBE的Alan Shirahama为最喜欢的艺人和灵感来源。他经常与JO1成员河野纯喜（Junki Kono）一起表演。[编辑]

截至2026年，豆原一成没有公开确认的恋情。他在整个职业生涯中一直保持个人生活的私密性，没有可信的日本媒体报道过任何约会丑闻、订婚或婚姻。他的经纪公司Lapone Entertainment对成员的个人生活实行严格保密。目前报道称他为单身。[编辑]

Updated for 2026, iFANN currently estimates Issei Mamehara's net worth at $500 Thousand. His primary income streams originate from his extensive activities with the boy band JO1, encompassing album sales, concert tours, and merchandise revenue. The group's dome tours and multiple chart-topping album releases generate substantial earnings, which are distributed among the eleven members. In addition to his musical endeavors, Mamehara earns significant fees from his acting roles, including his portrayal of Kamen Rider Chimera in the Kamen Rider Revice franchise and his starring role in Kamen Rider Revice: Battle Familia. His solo photobook released in 2022 further contributed to his financial portfolio. Endorsement deals secured as part of the group's collective partnerships add another layer of income. Exact figures remain private, as Japanese idol agencies typically manage individual salaries confidentially without public disclosure.[编辑]