A song with the same title as the EP and the single were both turned into music videos and released separately.
The EP's lead single, also titled "Hayırlı Günler", was written by Hakkı Yalçın, composed by Ceyhun Çelikten, and arranged by Serkan Balkan.
All of the album recordings took place at Marşandiz, Soundtrack, Digilocby TC, and Dr. Voice studios.
The crew of the album included: Metehan Köseoğlu (acoustic guitar), Görkem Oker (bass guitar), Mehmet Akatay (percussion), Eyüp Hamiş (reed), and Gündem Yaylı Group (violin).
[10] His first single "Köle" was included in the album in its original form, in addition to an acoustic and new radio versions.
Serkan Balkan did the mix of the two new versions of the song, while Tarık Ceran did the mastering at Digilocby TC studio.
Tarık Ceran again the mix-mastering, and it was finally turned into a music video[13] by Tamer Aydoğdu.
[17][18][19] In 2019, he also appeared as a featured artist on Ozan Doğulu's album 130 BPM Kreşendo, performing the song "Deli Fişek".