CC Madhya 11.237

kīrtana dekhiyā rājāra haila camatkāra
prabhuke milite utkaṇṭhā bāḍila apāra
Word for word: 
kīrtana dekhiyā — seeing the performance of kīrtana; rājāra — of the King; haila — there was; camatkāra — astonishment; prabhuke — Śrī Caitanya Mahāprabhu; milite — to meet; utkaṇṭhā — anxiety; bāḍila — increased; apāra — unlimitedly.
Translation: 
The King was very much astonished to see Śrī Caitanya Mahāprabhu’s kīrtana, and the King’s anxiety to meet Him increased unlimitedly.