Equinox was a five-piece band consisting of Zhana Bergendorff, Georgi Simeonov, Johnny Manuel, Trey Campbell and Vlado Mihailov.
They were chosen to represent their home country at the Eurovision Song Contest 2018 in Lisbon with the song "Bones". They performed in the first semi-final and qualified for the final, where they finished in 14th place with 166 points.
Post-Contest, the band went on to pursue solo projects.