Lord Caitanya loved to have kirtan every day. He never liked to stop chanting Hare Krishna.
One day clouds gathered in the sky. They cracked with thunder and all the devotees became afraid. Lord Caitanya took His karatals and began to chant:
hare krishna hare krishna krishna krishna hare hare
hare rama hare rama rama rama hare hare.
He looked up at the clouds and chanted loudly. In a moment all the clouds went away. The sky became clear and the bright moon rose. Lord Caitanya danced and chanted with His happy devotees.