"Tonight" is the third digital single released by South Korean pop band Spica.

The preparation and creation of the song was the main subject of the reality television show "Lee Hyori X Unnie" on OnStyle Entertainment Channel.

[1] In the show, Lee Hyori, a long-established pop star and company colleague, provides counsel to the group, which had struggled to establish success as a group, on making decisions on every detail of a music single promotion, including song-writing, media relations, and styling.

[4] The group members appeared in 1st Look Magazine with Lee Hyori to promote the release.

The video was directed by Lumpens[6] In its first week of release, the song peaked at #10 on Gaon Music Chart, which tracks the success of South Korean music, and was eight on the weekly online download rankings with 102,297 paid downloads from August 28–31[7] It would fail to make the top 100 digital singles of 2013.