Viktor Đerek (referred to mononymously as Viksi, born March 8, 2000) is a Croatian photographer, best known for his work which was featured in an advertising campaign for the tourist organization and for his musical career, he gained as a child.

His musical career began at age of 8, after having a chance to perform live at Marin Držić Theatre, covering songs by artists such as Lady Gaga and Adele.

In 2008, he even signed up a contract with a record label based in Sweden.

He was born in Split, Croatia on March 8, 2000 to a Catholic family and the majority of childhood he grew up in Dubrovnik.

He is known as an activist for the preservation of nature and as a travel guide for the Croatian islands.

He has gained popularity among the youth generation.

Viktor wrote his first song at the age of 8 for his best friend.

His talent was recognized by his elementary school teacher after getting involved in musical theater and quickly developing a love of music and performance.

He came into limelight after winning the music show for teens called " Republika " in 2012.

Later in 2014, he also performed Lana Del Rey's "Summertime Sadness" and Sia's "Chandelier" on HRT - Radio Dubrovnik.

X5 Music Group released several cover songs including Adele's "Someone like You" and "Paparazzi".