This is the 7462nd most frequent Russian word.
дайнеко
"Дайнеко" is not a standard Russian word; it is likely a proper noun, such as a surname.
The word 'Дайнеко' refers to the proper name of a famous person.
Дайнеко была известной российской певицей в 2000-х годах.
Daineko was a famous Russian singer in the 2000s.
Here, 'Дайнеко' again denotes the name of a specific person, relevant to the context of a concert.
Я слышал, что Дайнеко выступает на концерте сегодня вечером.
I heard that Daineko is performing at the concert tonight.
'Дайнеко' is used here as the surname of a person being referred to.