Yüksek Sadakat is a Turkish rock band formed in Istanbul in 1997 by bassist Kutlu Özmakinacı. Initially performing under the name Filinta, they adopted the name Yüksek Sadakat—meaning "High Fidelity"—in 2004. The band gained national recognition with their 2006 self-titled debut album featuring the hit "Döneceksin Diye Söz Ver", which blended pop-rock with Turkish instruments and melodic guitar work. They were selected to represent Turkey at the Eurovision Song Contest 2011 with the English-language song “Live It Up,” but failed to qualify for the final, marking a first for Turkey since the introduction of semi-finals. Over the years, the band’s lineup changed frequently, especially among vocalists, the current members are Serkan Özgen as the guitarist, Kutlu Özmakinacı as the bassist, Uğur Onatkut on keyboards and Deniz Alemdar as the drummer. Their discography includes albums like Katil & Maktûl (2008), Renk Körü (2011) and IV (2014).