A super serious future kirtaniya is practicing (2 min video)
Vaikuntha children under practice to spread Krishna consciousness in the whole world! :-)
Srila Prabhupada: Punya-sravana-kirtana refers to the process of devotional service. Even is one does not understand the meaning of the Lord’s name, pastimes or attributes, one is purified simply by hearing or chanting of them. Such purification is called sattva-bhavana. (Srimad-Bhagavatam, 6.2.12 Purport).
Watch it here: https://goo.gl/3pJAJm