blˈuː bˈɜːd wʌzðə fˈɜːst tˈaɪm hiː kəmpˈoʊzd ɐ sˈɔŋ fɔːɹ hˌæmɐsˈæki sˈɪns "wˈɪl" tˈuː θˈaʊzənd fˈaɪv, wˌɪtʃ ʃiː kˈoʊkəmpˈoʊzd ˌʌndɚ ðə nˈeɪm kɹˈiə.
Blue Bird was the first time he composed a song for Hamasaki since "Will" (2005), which she co-composed under the name Crea.