ɪt bɪkˌeɪm hɜː hˈaɪɪst deɪbjˈuː sˈɪŋɡəl ænd ɹᵻklˈeɪmd ðə tˈaɪɾəl ʌv hˈaɪɪst deɪbjˈuː sˈeɪlz fˈiːmeɪl ˈɑːɹɾɪsts, pɹˈiːviəsli hˈɛld baɪ ˈaɪjuːmi hˌæmɐsˈækiz "blˈuː bˈɜːd" tˈuː θˈaʊzənd sˈɪks.
It became her highest debut single and reclaimed the title of highest debut sales female artists, previously held by Ayumi Hamasaki's "Blue Bird" (2006).