Ma Boy 2 with Electroboyz (released november 2011)
The OST Because to Me it's You from Man of Honor.
Hot Wings-Dynamic Duo feat Hyolyn(released November 2013)
Without You-Mad Clown feat Hyolyn (released April 2014)
Faulty Fan-MC Mong feat Hyolyn (released November 2014)
Umbrella-Hyolyn (by Far East Movemen, released October 2016)
Erase-Hyolyn x Jooyoung (released November 2014)
Closer-Hyolyn (from her album Love and Hate, released November 2013)
Wow-Hyolyn (from Sistar's album Touch and Move) y'all hear that note?
Say My Name-Hyolyn( the best Kpop song released this year and that's on talent)