Behzad Leito
As Lead Artist

Title
Year
Featured Artist(s)
Album
"Adam Fazaee"
2011
Khashayar
N/A
"Kargardan"
2011
Erfan
N/A
"Farda (Live Remix Tomorrow)"
2011
Laleh
N/A
"Touye Meh"
2012
Paya
N/A
"Fogholade"
2012
Sijal and Sami Beigi
E MA II The Second
"Naab"
2013
Alireza JJ and Sijal
Khakestari
"Sakht Migzare"
2013
Alireza JJ and Sijal
Khakestari
"Sargarmi"
2014
N/A
Khakestari
"Paropache"
2014
Sepehr Khalse
Sis
"Palang"
2014
Alireza JJ and Sijal
Khakestari
"Dadim Raft Toro"
2015
Sogand
N/A
"Khordad"
2015
Cornellaa & Dynatonic
Bistose
"Bahatam Dasham"
2015
Sijal
Bistose
"Khaak"
2015
Sijal and Nassim
Bistose

Question: In which year was the single  "Khaak" featuring Sijal and Nassim released?
Answer: The single, "Khaak" featuring Sijal and Nassim, was released in 2015.