Marcel Botezan and Sebastian Barac worked since 2015 working under the artistic name Marco & SEBA, but since july 2020 are being called Gran Error after releasing the song ‘Slow Dance’ with Minelli,. The former Play & Win members have produced songs like Heaven and Yalla (INNA); Bom Bidi Bom (Nick Jonas feat. Nicki Minaj); I Did It, Mama! (Alexandra Stan) and Never Give Up (Yanka).