Sven Sieperda, known professionally as KELTEK, is a Dutch hardstyle artist, famous for his energetic melodies and big sounds. He's said that he usually starts by first composing simple melodies on a piano and then gradually expanding on them with different phrases and tunes. A self-taught artist, he devotes special attention to the "last piece of the puzzle," as he calls it.

In 2017 he launched the KELTEK project, which is focused solely on hardstyle music. In the same year, he signed with the record label Scantraxx, and released "Down To Earth," which firmly reintroduced his massive impact on the scene. Shortly thereafter at the beginning of 2018, he released “Dance The Way I am.” It received critical acclaim and began generating momentum for what was in store for him that year with Through The Night, Kick Off (Rebirth 2018 OST), Dark Sun (voted as number 8 in the Q-dance top 100 voting of 2018) and Valkyries (used in multiple endshows of events such as Electric Love and Mysteryland)

In the same fashion, he continued his prolific performances in 2019 with tracks such as “Edge of Existence (Reverze 2019 anthem),” One Tribe (Defqon.1 2019 anthem), his solo track “Oblivion,” and “Break The Game” (with Sub Zero Project).

So far in 2020, he's had multiple musical successes, starting in January with a collaboration with Diandra Faye with the song "Kingdom Comes". Then two months later he released “Arriba” with Psyko Punkz & Coone, which had millions of streams within just a few months after its release. Later on, he released “One Of Us” With Sound Rush. Last but not least he is responsible for the official Intents Festival Anthem 2020 together with B-Front.

Internationally, KELTEK has performed live in Australia, Chile, Singapore, Mexico, and every country in Europe. He has also appeared in other big shows such as Defqon.1, Tomorrowland, Intents, Reverze, Airbeat One, Electric Love and The Qontinent.