2015: Eurovision Song Contest 2015 Nadav entered the second season HaKokhav HaBa, the Israeli national selections for Eurovision Song Contest 2015 where he became one of the sixteen finalists. He is the youngest participant of the contest"s second season, just turning sixteen when turned up for the first audition day. He sang "Russian Roulette" by Rihanna for his first audition and Stevie Wonder"s "Lately" for the second audition.
In the second round of the contest proper, he performed "Halo" by Beyoncé.
Nadav then advanced to the semi-finals of the contest along with six other contestants where he performed "Mirrors" by Justin Timberlake. He then reached the finals of the contest with four other contestants after performing "Locked Out of Heaven" by Bruno Mars in a duets battle against fellow contestant Orit Biansay.
On 26 February 2015, it was announced that he would be singing Golden Boy at the Eurovision. On 12 March 2015, Golden Boy was released and is Israel"s first entry to the contest that"s entirely sung in English.
On May 21, 2015 Guedj performed in the Eurovision song contest"s second Semi-final in Vienna and he has successfully made Israel reach the final for the first time in five years.
At the Final on May 23, He finished 9th overall with 97 points. = Eurovision Song Contest Postcard 2015 The postcards – short video clips introducing the participants – of this year"s contest witness the slogan "Building Bridges". Each of the clips start with every contestant receiving an invitation to Austria in their home country.
The story continues with the contestants making their way to one of Austria"s nine states where they have an individual task to fulfill.
Nadav Guedj"s postcard was filmed on location in Tel Aviv and the renowned skiing resort Lech am Arlberg in Vorarlberg, where Guedj is seen spray painting a gondola lift with the Austrian cartoon artist and musician Bernd Püribauer. Post-Eurovision 2015: First studio Album After the contest, Guedj"s Music video for his Coca-Cola-endorsed Song "Summer Together", Again written by Medalie, for the "Coca Cola Summer Love" events in Israel, has been released on 8 August.
On 19 August, Guedj released a New Radio Single, "Good Vibes", A song Guedj wrote himself along with Ruby Feier.