A Japanese pop singer who was arrested for public indecency after being found drunk¹ and naked² in a Tokyo park has apologised for his "shameful³" conduct.

一位日本流行歌手在东京公园被发现喝醉并裸体，后因为公然猥亵罪遭逮捕，他为自己“可耻的”行为道歉。

"I drank a lot and did not know what I was doing," Tsuyoshi Kusanagi said on Friday after being released⁴ by police.

"I deeply apologise to fans for causing so much trouble and worry," he added.

Kusanagi, 34, shot to fame（名声，名望） as a member of 1980s boy band SMAP. He has not been charged for the incident, which took place in the early hours of Thursday.

At the time of his arrest, Kusanagi was allegedly（依其申述） sitting on the grass, undressed and heavily intoxicated⁵.

Local media reports said he had drunk more than 10 glasses of Japanese rice wine and beer before going to the park.

His arrest has been a major news story in Japan, where Kusanagi is the face of a government campaign to get the public to switch to digital television.

Since the arrest, Toyota Motor Corp and other leading companies have cancelled commercials featuring the star.