艺声的日本正规二辑《咲き誇る時を待つのは／Sakihokoru Toki o Matsu no wa》正式发行。《咲き誇る時を待つのは／Sakihokoru Toki o Matsu no wa》是纪念艺声在日本作为个人歌手出道10周年的心血之作。专辑以’四季’为主题，共收录了10首歌曲。值得关注的是，艺声亲自参与了全部10首收录曲的作词，将想要传达给陪伴他在季节更迭中一路走来的粉丝们的信息，融入到了Rock、Disco、Country及Pop等多种音乐风格之中，展现了极广的音乐跨度。【Album Review】01 咲き誇る時を待つのは／Sakihokoru Toki o Matsu no waLyrics by 예성 (YESUNG), Rose BluemingComposed by EVAN, Saabyuk, Yun Jung Hwan(LUVEN), Huze, Ove, LEEBADAArranged by EVAN, Huze, Ove02 Invincible ～また、そうやって～／Invincible ~Mata, Soyatte~Lyrics by 예성 (YESUNG), Rose BluemingComposed by Coach&Sendo, Andrew ChoiArranged by Coach&Sendo03 Fire 〜灰になっても、燃え付く僕ら～／Fire ~Hai ni Nattemo, Moetsuku Bokura~Lyrics by 예성 (YESUNG), YUKINOSComposed by MooF(MonoTree), MLC, LairdArranged by MooF(MonoTree)04 あつらえたように現れた君 ～TO GET HER～／Atsuraeta yo ni Arawareta Kimi ~TO GET HER~Lyrics by 예성 (YESUNG), YUKINOSComposed by kimjiseob, SINJUN, JoohwanArranged by kimjiseob05 写しかがみ ～憎しみの矛先～／Utsushikagami ~Nikushimi no Hokosaki~Lyrics by 예성 (YESUNG), Takahashi ShihoComposed by Smob, LiVi, FLAME, HEMIANArranged by Smob, LiVi06 僕だけが辛い一日ではないはず／Boku dake ga Tsurai Ichinichi de wa nai hazuLyrics by 예성 (YESUNG), midori.Composed by nokdu, Kim YejongArranged by nokdu, Kim Yejong07 MAD WORLDLyrics by 예성 (YESUNG), ELVYNComposed by Patrick RydmanArranged by Patrick Rydman08 Chasin’ the Sun (君の速度で)／Chasin' the Sun (Kimi no Sokudo de)Lyrics by 예성 (YESUNG), 足浮梨ナコComposed by JON GREEN, IAIN JAMESArranged by JON GREEN, IAIN JAMES09 Shall We DanceLyrics by 예성 (YESUNG), 足浮梨ナコComposed by Willie Weeks, Carlos OkabeArranged by Willie Weeks10 白い星（MELO）／Shiroi Hoshi (MELO)Lyrics by 예성 (YESUNG), HASEGAWAComposed by EO KAI KANG PHAI 1, JO YOUNG JAEArranged by EO KAI KANG PHAI 1, JO YOUNG JAE