TWiiNS are a Slovakian pop duo consisting of identical sisters Daniela and Veronika. They previously appeared at the 2009 contest as backing singers and dancers for Czech entrant Tereza Kerndlová. However, they were less successful two years later when they attempted to represent their home country in Düsseldorf with the song I'm Still Alive as they finished in 13th place in the second semi final, thus missing out on the final. They are well known for their cover of "Boys (Summertime Love)" by Italian singer Sabrina and have also collaborated with American rapper Flo Rida.