[2][3] In 2011, Gunčíková became a finalist on the second season of the Czech-Slovak version of Pop Idol, titled Česko Slovenská SuperStar.

Following the show's ending, she was signed to Universal Music Group and released her debut album Dvojí tvář later in the year.

She was paired with professional dancer Peter Modrovský until the dance couple was eliminated on 14 October 2011, finishing in seventh place.

She graduated from Tamplin's classes in 2014 and subsequently joined the American progressive rock band Trans-Siberian Orchestra as a touring vocalist.

[2][3] She competed in the second half of the first semi-final on 10 May 2016 in Stockholm, Sweden,[7] and qualified for the grand final (she was the first Czech entrant to do so), where she performed second, and finished in 25th place.