One of beyond's classic tracks is BEYOND's breakthrough after Earth. Really love you is the theme song of 1989' s fourth album. The lyrics express the great praise for maternal love and love, and also express Ka Kui's gratitude to her mother. Musically, like bidding farewell to ideals, each of the four members will sing a passage. This will gradually highlight the talent of each member of BEYOND in vocal music. It can also let fans know something about the band.