MAMAMOO's Solar continued to prepare for her solo comeback by releasing the tracklist for her 2nd mini-album 'COLOURS.'

According to the tracklist released on April 16 at midnight KST, Solar will include six tracks in her upcoming mini-album. 'COLOURS' will include "Colors," "But I," "Empty," "Honey Honey," "Easy Peasy," and "Blues."

Meanwhile, Solar's 2nd mini album 'Colours' will be released on April 30 KST.

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