At the event, Tiara Andini also had the opportunity to share a moment with the South Korean idol group, Super Junior.

After passing the audition stage and going through a competition quarantine process for 5 months, on 2 March 2020, Tiara Andini was named the runner-up.

[25] As the runner-up of the tenth season of Indonesian Idol, Tiara Andini received a cash prize of 100,000,000 IDR, as well as one unit of the All New Nissan Livina MPV car.

From Indonesian Idol, Tiara Andini got a winning song entitled Gemintang Hatiku which became her first single as a singer.

[31] On 8 August 2020, Tiara Andini became one of the performers at the Smartfren WOW Virtual Concert which was broadcast live in three countries, namely Indonesia, England and South Korea.

In this event, Tiara Andini is trusted to have a duet with one of the legends of Indonesian music, the late Didi Kempot using the concept of holograms, extended reality (XR) and interactive virtual audience technology.

[32] On 21 February 2021, Tiara Andini sang a duet with Thai actor Bright Vachirawit at the Giveaway Roboguru Show.

This event was broadcast by 9 television stations, namely Indosiar, Trans7, Trans TV, RCTI, GTV, SCTV, MNCTV, RTV, and NET.

[33] A year after graduating from Indonesian Idol, Tiara Andini was joined by Arsy Widianto to collaborate on a music project.

[34] On 12 March 2021, the music series was packaged and released as an extended play entitled Arti untuk Cinta with the addition of one new song to the album track.

In 2021, Tiara Andini enrolled at Multimedia Nusantara University, where she chose S1 level in the Communication Science study program.

[37][18] Two days before the release of her debut album, she was picked as Spotify's Indonesian Artist of the Month in the context of the Equal campaign program.

[38] On 17 December 2021, she released her first studio album which has a homonymous title with her stage name and received high mounth acclaimed.

[41] On 30 December 2021, Tiara Andini along with other musicians such as Raisa, Noah, Weird Genius, and Erwin Gutawa were involved in a music concert titled Suryanation: Suara Cahaya Nusantara which was broadcast live by SCTV with the theme of Indonesia's fighting spirit to enter 2022.

Suryanation: Suara Cahaya Nusantara is the first music concert and program on Indonesian television that uses extended reality (XR) technology throughout the event.

[42] On 16 January 2022, Tiara Andini along with Gangga Kusuma, Nadin Amizah, Juicy Luicy, and Kaleb J were included in the list of 5 outstanding young musicians of Spotify Wrapped 2021.

Before releasing the song, Tiara Andini performed live with Zack in Philippines on a music show UMUSIC FansVerse.

[49][50] In May 2023, Tiara Andini in collaboration with Weird Genius, Lyodra Ginting, and Ziva Magnolya, unveiled the official anthem for the 2023 FIFA U-20 World Cup, entitled Glorious, originally intended as the official theme for the FIFA U-20 World in Indonesia, but due to controversy, the event was moved to Argentina.

[55] South Korean musician, Ryeowook of Idol group Super Junior also stated that Tiara's voice is "beautiful".

The Arti untuk Cinta music series videos,[60] of singles "Hadapi Berdua"[61] and "Buktikan",[62] was produced with the style of South Korean dramas in mind.

In addition, Tiara Andini also released a song recorded in Korean language which was featured on her EP Arti untuk Cinta.