[14] Yohani's interest and practice in music began early in her life,[15] and it was her mother who identified her keenness and prompted her to pursue this passion at a young age.
[2][16] She grew up surrounded by her parents' love of music as they often listened to the BeeGees, Spice Girls, AR Rahman and Elton John.
She completed her higher education in Logistics Management and Professional Accounting from the General Sir John Kotelawala Defence University prior to pursuing her career as an artist.
[30][31] She had also completed her debut Sinhala album which features twelve songs and plans[needs update] to launch it during a live concert around December 2021.
[35][36] On this tour, she joined two of India's most popular television shows, Salman Khan's Bigg Boss 15 and Ranveer Singh's Big Picture as a guest.
She then lent her voice to the official song of the T20 Cricket World Cup in Sri Lanka in 2021 and released her first international single "Moving On" in English under the music label Red Bull Records.
A few more concerts were held in Dubai and then in March 2022, she, Chamath Sangeeth, Satheeshan and Dulan ARX won the SLIM Award for the most popular song of the year.
Tanishk Bagchi and Chamath Sangeeth composed the song and Rashmi Virag, Dulan ARX and Mellow D penned the lyrics.
Along with Yohani, India's popular singer Jubin Nautiyal & Surya Raghunaathan featured in the song which is from the Bollywood movie Thank God.
It released in October 2022 and features Indian actors Siddharth Malhotra, Ajay Devgan and Rakul Preet Singh along with Canadian artiste Nora Fatehi.
In 2023, she contributed her vocals to the remake of the song "Jheda Nasha" which featured Nora Fatehi and Indian actor Ayushmann Khurrana in the Bollywood film An Action Hero.
In February 2023, Don & D Entertainment organized two grand musical concerts of veteran Bollywood singer Udit Narayan in Melbourne and Sydney, Australia.
[39] Her 2020 song "Rawwath Dasin" depicted her father as a hero who fought against terrorists and united the north and south of the country, despite his involvement in war crimes.
Many activists have condemned the glorification of her father's actions, viewing it as an attempt to whitewash the atrocities committed during the Sri Lankan Civil War through music.