She drew special attention during the show's second season when judges interrupted her performance of Polina Gagarina's Lullaby (Колыбельная, Kalybelnaya),[2][3] suspecting that she was lip-syncing to a recording, and asked her to sing a cappella.

[4] Nikolaychuk was born in Odesa, Ukrainian SSR, Soviet Union, to Irina Leonidivna Munika (formerly Potolova) and computer specialist Yurij Evgenijovich Titaev.

After Nikolaychuk retired from X-Factor, the video of her performance at the casting show reached a record number of views on YouTube.

[7] By winning X-Factor Online,[7] Nikolaychuk gained entry to the training section of the show for the third season, bypassing the audition and pre-screening stages.

[9] Participating in the third season of X-Factor,[10] Nikolaychuk got to twenty-fourth place in the training section of the show in the 25-years and older category.

[19] After winning the third season of X-Factor, Nikolaychuk started working with artists in the Commonwealth of Independent States (CIS) countries, and signed a contract with Sony Music.

On 4 September 2013, Nikolaychuk participated in the competition "Promotion", organized by the Russian television channel Music Box, presenting her debut video, and was selected as a winner.

[26] On 16 December 2013, the names of nominees for the annual music award YUNA-2013 were released; Aida was nominated for "Discovery of the Year".

[27] In the results of the national poll «Favorites of Success – 2013», Aida was recognized as "Female Singer of the Year" due to the amazing support of her fans.

On 29 September 2014, she released a new song called "Muzika", this marked as a new music era for Aida Nikolaychuk.

She was announced as a participant of the National Final to select the entrant for Ukraine in the Eurovision Song Contest 2016.