《It's on Again》是一首由美国唱片艺人艾莉西亚·凯斯与美国说唱艺人肯德里克·拉玛尔合唱的歌曲。该歌曲为2014年电影《蜘蛛人：驚奇再起2》所写，写作者是凯斯和拉玛尔，电影配乐是汉斯·齐默，制作人是法瑞尔·威廉斯[1]。《It's on Again》是以《惊奇蜘蛛侠2》原声带首支单曲的形式于2014年3月31日发行的。
2014年3月12日，哥伦比亚唱片发布了新闻称：《It's on Again》将会被包括在《惊奇蜘蛛侠2》原声带中，且作为电影的片尾曲[2]。The release included a statement from director Marc Webb, who described the process of selecting "a song that would be upbeat and exciting, but also contain a note of foreboding" to serve as the film's the closing theme and praised "It's on Again" as the "perfect end note."[2] Keys also expressed her excitement at working with Kendrick Lamar, producer Pharrell Williams and film composer Hans Zimmer, the latter of whom scores the film.[2] On March 31, "It's on Again" was uploaded to Keys' official Soundcloud page[3] and impacted mainstream urban radio in the United States.[4] The following day, it was released digitally as a single.[5]
