You can listen to the bhajan and learn how to sing it yourself. The words and their meaning are below along with the chords for harmonium accompaniment.
Bhajan # 647 in the Premananda Bhajans book
Krishṇa, illusory Krishṇa, coloured blue like the sky, playing divine and magical dramas, You eat sand, then You eat white butter. Krishṇa of the cowherds, king of the Gōpīs, son of Nanda,You are always blissfully happy.