Outside of his career with Libels, he is known for singing "Melangkah Di Awan", written and composed by Dwiki Dharmawan and Eddy D. Iskandar and released in 1997.

[3] In 1997, Sianturi starred as Indra in the TV series Melangkah Di Atas Awan (Walking in the Clouds).

[4] The series' theme song, titled "Melangkah Di Awan", received generally positive reviews and peaked at number five in Aneka Top 13 Hits Indonesia, dated to November 15, 1997.

[5][6] In 2000, Sianturi signed a contract with Sony Music Indonesia, to release his self-titled album, Ronnie, in April of that year.

A year later, Sianturi returned to Musica to release his special studio album, Bintang Keabadian (Eternal Star).