The four members of the Vocal group Rivers Katarina Jurić, Irena Križ, Ana Jakšić i Jasenka Rutar, joined Darija Kinzer in her winning team for Eurosong 2011. Rivers is well known after their Croatian and international awards such as Porin and Swingle Award. The four members are chosen from Aleksandar Kostandinov the Chief of Croatian Delegation for Eurosong. Their vocals fitted perfectly into the song "Celebrate" written by Boris Đurđević. 

Due to their rich experience of performing and recording as backing vocals and adaptation of vocal arrangement by Katarina who is currently a student of contemporary writing and production at Berklee College of music, their part is already rehearsed and ready. At the intensive preparations that will be held in the last week before heading towards Dusseldorf, they will meet the rest of the team, Russian illusionist Segej Voronstov, choreographer Larisa Lipovac. The concept of their image was consulted  by top stylists  Davor Perman and Ksenija Juravić, while at the media happenings they will wear the brands of Benetton, Max and Co and Accessories