One of Ruha's first releases was the song "Hotuhotu", which he recorded with Ria Hall, which became one of the most played songs in te reo Māori on New Zealand radios in 2011.[1] During a 2012 trip to Hawaii to judge a kapa haka competition, Ruha performed as a solo musician for the first time.[5] In 2013, he began working as a solo musician after receiving mentorship and guidance by musician Maisey Rika,[2] releasing his solo debut single "Pōnga Rā" on Waitangi Day 2014.[2] His debut extended playTiki Tapu was recorded at a home studio in Hamurana on the shores of Lake Rotorua, and produced alongside Michael Barker of Split Enz.[2] His debut album Pūmau followed shortly afterwards in 2015.
In 2016, Ruha worked as a music consultant and performer for the soundtrack of the Lee Tamahori-directed film Mahana,[1] and in 2017 was the musical director for the Te Reo Māori translation of the Walt Disney Pictures film Moana.[1] Ruha's second album Survivance, a soul and R&B collaboration with the Witch Dr., was led by the single "Kalega". The song's title is a Te Tai Rāwhiti Māori slang term meaning "too much".[6]
In January 2020, Ruha produced released a live album of gospel waiata in te Reo, sung supergroup Mōhau.[7] The album won the Te Māngai Pāho Mana Reo Award and the Best Worship Artist Te Kaipuoro Kairangi Toa award at the 2020 Aotearoa Music Awards.[8] In 2021, the Ruha-produced Te Tai Rāwhiti choir Ka Hao released their debut single "35", which became a hit single in New Zealand, gaining popularity on TikTok during Te Wiki o te Reo Māori (Māori Language Week).[9] Later that year, Ruha released his third studio album, entitled Preservation of Scenery.[10] "35" and "Taera", a single from Preservation of Scenery, were two of the top 10 most commercially successful songs sung in Te Reo Māori for 2021.[11]
Ruha is married to music manager Cilla Ruha, who he met at high school.[4] Together they have four children.[2] His entire family speaks te reo Māori as their first language.[13] He lives at Te Kaha in the Bay of Plenty.[13]
Ruha practices raranga (traditional weaving) and painting, which he learnt from his grandmothers at the age of seven.[1]