Utada had five TV performances a month after it had been released, due to her promotional work in Europe for the last Exodus album single, "You Make Me Want to Be a Man", which delayed her performances. The timing of these lives has also fit in with the release of Spring Snow. Also planned with these live performances is an internet streaming of "Be My Last" available from Utada's Toshiba-EMI website. The streaming includes a performance as well as Utada answering a few questions from fans. It was available from the 11th until the 20th of November. On the television program performance at Music Station, Utada was accompanied with a cello as background music for "Be My Last" instead of the CD version which she had used for the other performances.Aya Matsuura had also covered "Be My Last" on 30 October 2005.
"Be My Last" reached #1 on the first day of its release on the Oricon chart, and stayed the number one single of the week post that day. To date, "Be My Last" has sold at least 150,000 physical copies. In 2005, this single sold 143,916 units, making it the #70 single of 2005.