Who has written krishnashtakam?

The Krishna Leela Tarangini, wrote by Narayana Tirtha, in chaste Sanskrit, comprises 155 gitams in about forty ragas, short daruvus, nearly 350 slokas -gadayams and link prosodies. The title means 'Delightful Waves of the Sport of Sri Krishna'. The ennobling theme highlights the Advaita philosophy propounding the unrivalled supremacy of the Lord in emphatic, devotion- drenched terms.