With their infectious musical fusion of roots and rhythm, Ukrainian hiphop folk band Kalush Orchestra is riding a rightful wave of goodwill at the Eurovision Song Contest this year -- while eyeing the contest's top prize. Tapping traditional Ukrainian folk music but mashing it with a refreshing hip-hop beat with a haunting lullaby refrain, "Stefania" was written in 2021 by the band's frontman, 27-year-old rapper Oleh Psiuk, as a tribute to his mother. But the song chosen to represent Ukraine at Eurovision in February, ahead of Russia's invasion, has taken on outsized meaning for the country nearing its third month of war. IMAGES AND SOUNDBITES