Early life

Rhymastic was born Vũ Đức Thiện and grew up in a family where his parents were ordinary civil servants but highly educated. His paternal grandfather was a literature teacher who passed down knowledge of Hán characters and poetry to him. He has stated that he was heavily influenced by his family and their intellectual lineage. During elementary school, a neighbor visited and, noticing his beautiful hands, advised the family to enroll him in music lessons. His family subsequently took him to learn the organ, giving him early exposure to sound. In middle school, his older brother took him to a hip-hop club in Hanoi. After witnessing the performances, Thiện was deeply impressed by the genre. Back home, he studied it further, learning from rappers on channels like MTV and searching the internet to understand rap lyrics, how artists worked, and what they composed. Thiện considers 2Pac and Eminem his inspirations at the time. He once composed a rap segment for the skit "Alo 123" by People's Artist Công Lý and was paid 200,000 VND: "That was the first money I ever earned from music; I was very happy and proud."^[1]

In 2006, Thiện took the stage name Young Crizzal (YC), began performing hip-hop, and joined the GVR rap community. During this period, he spent most of his time researching rap and teaching himself new skills alongside other GVR members. In 2008, he entered the "Đường lên đỉnh GVR" competition and won, becoming an exclusive rapper for GVR. The following year, he changed his stage name from Young Crizzal to Rhymastic and transitioned into professional work by experimenting with and perfecting his recording, vocal processing, and songwriting skills.^[2][3] He graduated from the Hanoi University of Architecture and worked at the M4Me studio with artists like JustaTee and Young Uno.^[4] He described the job as simply pressing record for clients for a salary that was "enough for pocket money and iced tea." However, Rhymastic noted that this was an opportunity to learn about music and "build a massive foundation of sound knowledge."^[5]

Career

On October 31, 2011, SpaceSpeakers was founded, and Rhymastic became one of the group's original faces.^[6] In 2013, after Karik faced heavy criticism from the underground scene for deciding to go mainstream, Rhymastic, along with Binz and BigDaddy, spoke out in his defense. This led to several "beefs" between Rhymastic and rappers with differing ideologies.^[7] During this time, Rhymastic also had disagreements with GVR member Linh Lam and officially left the group to focus on SpaceSpeakers.^[8][9]

In 2016, a conflict between Rhymastic and B Ray led to a rap battle. He released several diss tracks in response to B Ray, such as "Bản Kiểm Điểm," "Ngược Đời," "B Ray Dissin," and "Ếch Báo Dissin."^[10] Rhymastic competed in the second season of "The Remix" as the music producer for Team 04 (alongside members Soobin Hoàng Sơn, Antei Ngọc Thịnh, and Gin).^[11]

In 2017, he released "Yêu 5," which received positive feedback from the music industry and ranked high on Zing MP3.^[12] At the end of the year, Rhymastic participated in "Sao đại chiến" as a producer, partnering with singer Hoàng Tôn. The show featured singers, bands, and producers challenged with reinventing old songs.^[13][14] He had a heated debate with Dương Cầm during a live broadcast.^[15]

In 2019, he was invited to be a judge for the Beck'Stage battle.^[16]

In the following years, Rhymastic continuously released products offering multi-dimensional perspectives on life. In a 2020 interview with Billboard Vietnam, he stated he would limit his participation in personal rap beefs because "as you get older, the time you have for those things gets narrower and narrower."^[17]

Also in 2020, Rhymastic became a judge on the show "Rap Việt."^[18]

Rhymastic also composes for other singers, including "Sâu trong em" (Bích Phương), "Nơi ta chờ em" (Will), "Let Me Feel Your Love Tonight" (Trà My Idol), and "Tình yêu tuyệt vời" (S.T Sơn Thạch).^[19]

In 2024, Rhymastic appeared in the reality music show "Anh Trai Vượt Ngàn Chông Gai" (Call Me by Fire Vietnam), winning the "King Of X-Part" award and becoming a member of the "Gia tộc toàn năng" (All-Powerful Family) lineup.^[20]

In 2025, Rhymastic became a main member of "Gia đình Haha"—a reality TV show promoting the unique cultures of various regions in Vietnam.^[21]

On October 22 of the same year, he released his debut full-length album, "Đâu ai yêu nghệ thuật đến thế" (Who Loves Art That Much). The album consists of 10 tracks, representing Rhymastic's journey of questioning the true value of art and fame, and the sacrifices an artist makes while overcoming loneliness, pressure, and temptation to maintain their true self. This project was nurtured by Rhymastic for many years, marking the first time he fully exposed his inner world and his gritty alter ego, YC.^[22]

Studio albums

EPs (Extended plays)

Compositions