Halil Sezai is famous for his "soulful" and raw vocal delivery, often associated with a style sometimes referred to as "rebel" or "drunken" melancholia in Turkish pop-rock. The arrangement of "Olsun" typically features acoustic guitar, clarinet, and soprano saxophone, adding to its somber atmosphere.

"Sana bi' söz yazdım bugün" (I wrote a word/promise to you today) is the iconic chorus line from the song by Turkish artist Halil Sezai . Released in 2011, the song became a massive hit and is a cornerstone of modern Turkish melancholic music. Overview of "Olsun" Artist: Halil Sezai (Halil Sezai Paracıkoğlu).

Seni Beklerken (While Waiting for You), released in November 2011.