The Mahamantra was first mentioned in the Kali-Saturn Upanishad, composed before 5 AD; Which is associated with the Krishna Yajurveda. According to this book, uttering this mantra aloud, removes all the bad influences of Kali Yuga.

Hariyam Hariyam Hariyamayam is simply
Kallou breakfast breakfast breakfast dance style.

The essence is 'Hari (Krishna in their language) has not been released in the Kali Yuga without a name.'