The eagerly anticipated Tamil film "Captain Miller" starring Dhanush is set to release its first single, "Killer Killer." With Dhanush singing the track and GV Prakash composing the music, the song has already generated buzz after director Venky Kudumula shared a sneak peek, calling it "mind blowing." The film, set in the pre-independence era, promises an epic tale of a fugitive leader's fight against the British.