This was reported by the kp.ru website.
It is noted that Nikolaev successfully underwent coronary artery bypass grafting.
The report says that the artist "has already come to his senses, joking."
At the same time, doctors say that he will need to spend several weeks in the hospital.
At the same time, according to Life.ru, the source of the Telegram channel SHOT said that Nikolaev had already been transferred to the general ward.
Earlier, the media reported that Nikolaev was hospitalized due to heart problems.
As RT found out, his concerts were either postponed to February or completely canceled.