Unlike the previous installment of the concert where she and her company served as a guest artist and organizer respectively, Nuhaliza was the main singer for Konsert Satu Suara, Vol.

Tickets sold days before the concert, and she and her supporting acts received positive reviews from critics for their vocals and showmanship.

"Siti, Ramli and Hetty are legends in their own right with distinctive voices and versatility that set them apart from other artistes across Southeast Asia.

[5] On 5 October, she held a press conference at Istana Budaya to announce the news of Konsert Satu Suara, Vol.

2, her two-day concert with Hetty Koes Endang and Ramli Sarip which was to be held on 7 and 8 November at Istana Budaya.

"[a][7] Upon realizing that she and her company had to call off the theater in September, Siti only had two months to reschedule another performance to fill the vacant dates and venue.

"[3] According to Siti, both guest stars, whom she considered legends, were the right choices given the fact that their vocals and showmanship are still "on point," even if they were both over fifty years of age.

[14] Her wardrobe for both nights was provided by four local designers – Rizman Ruzaini, Ezuwan Ismail, Faizel Azraf and Qudyn.

[16] The next four songs, "Bukan Cinta Biasa", "Pastikan", "Pedihnya Rasa", and "Rindu", were sung as duets by Siti and Hetty.

[14] Adding details to the story, Ramli also recalled the same incident when he signaled few men who were near Siti at that time not to touch her.

[16] Accompanied by a guest saxophonist, Jari, Ramli took the stage with his own solo performance of "Jikalau Berkasih" and "Budaya".

[16][note 1] After Ramli left the stage for his wardrobe change, Siti and Hetty performed a medley of "Kuda Hitam" and "Berdiri Bulu Romaku".

[14] For the final two songs of the night, Ramli joined Siti and Hetty on the stage to perform of "Lagu Rindu" and "Temasya Desa Gemalai".

[19][21] "Overall, witnessing a concert [by] Siti, Ramli, and Hetty that are definitely popular in their respective birth country, their great vocals are out of the question.

A number of critics questioned whether the collaboration would be successful, given that many of Siti's fans were relatively young, and unfamiliar with the songs of Ramli and Hetty.

According to a reviewer from Utusan Malaysia, her vocals were able "to cause the body hair to stand on their ends",[15][d] while "her spoken material was amusing and she sang like a prized songbird effortlessly" according to Deric Etc.

of Daily Seni commented, "At the age of 58, Hetty Koes Endang had the entirety of Istana Budaya eating out of her hand.

Her charisma, energy and sense of humour shone brighter than ever; Hetty launched Konsert Satu Suara into the stratosphere last Sunday night.

"[18] He also added "Showcasing pipes of steel, the veteran singer’s voice has gained an impressive strength after all these years.

[17][21] Many critics stated that the vocal comparisons were unfair, given how the artists differed in term of voice and experience.

[14][16][18] Zaidi Mohamad of Berita Harian stated "[...] this performance is not about a vocal war or their influences, on the contrary, all three figures have emphasized that they are united in the name of music.

of Daily Seni concluded his review with "This writer, who went to Istana Budaya merely to watch Siti Nurhaliza, ended the night with newfound interest for Malay music of the seventies, eighties and nineties.

[3][25] Datuk Juhari Shaarani, Istana Budaya's Director-general, commented in an interview that "Anything that involves Siti Nurhaliza, [has] never failed, especially her concerts.