In what year was the album “Hola Hola” released by KARD?

In what year was the album “Hola Hola” released by KARD?: The album “Hola Hola” was released in 2017 by KARD, featuring 6 tracks.
What is the most successful song from the album “Hola Hola” by KARD?: “Oh NaNa” is the biggest hit from the album “Hola Hola” by KARD.
What are the main songs from the album “Hola Hola” by KARD?: The main songs from the album “Hola Hola” by KARD are “Oh NaNa (Hidden. 허영지)”, “Don't Recall”, “Rumor”, and “04. Hola Hola”.

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