"To My Bestfriend"
Single by Boyfriend
Released	May 26, 2016 (2016-05-26)
Recorded	2016
Genre	K-pop
Label	Starship Entertainment
Boyfriend singles chronology
"'Boyfriend in Wonderland'" (2015) "To My Bestfriend" (2016) "Glider" (2016)

"To My Bestfriend" (Korean: 약속할게) is the second digital single released by South Korean boy band Boyfriend. The single is a special gift to fans for the group's fifth anniversary. It was released May 26, 2016.^{[1][unreliable source?]}