In 2012, Janković participated in Prvi glas Srbije, a musical talent show similar to The Voice.
[6] On 1 July, Janković performed "Bože pravde", the national anthem of Serbia, alongside two more singers at the opening ceremony of the 2009 Summer Universiade, which was held in Belgrade.
[7] She would also sing the "Bože pravde" at the reception of Serbia national basketball team who had won the silver medal at the EuroBasket 2009.
[9] Along with Nikola Sarić, she took part in the Sunčane Skale Festival in Herceg Novi, Montenegro, with the song "Uhvati dan" (English: Seize the Day).
[14] In December 2011, Janković officially adopted "Miss Jukebox" as her artistic name, and announced the release of her new single "Nikome nije lako" (English: It Is Easy to No One).
[15] The video for the song features popular Serbian musicians such as Dragoljub Đuričić, Vukašin Brajić and Nikola Sarić.
[17] She had previously once been nominated for elimination, but was saved by the judges Vlado Georgiev, Aleksandra Radović and Saša Milošević Mare.