Aarti Kunj Bihari Ki is one of the most famous Aartis of Lord Krishna. It is recited with much fanfare on most auspicious occasions related to Lord Krishna including Krishna Janmashtami or Srikrishna Jayanti day. It is so popular that it is recited regularly in homes and various Krishna temples.
Bihari is one of the thousand names of Lord Krishna and Kunj refers to lush green groves of Vrindavan. Kunj Bihari means, the one who roams in greenery of Vrindavan, the supreme Lord Krishna.