"Say Goodbye" is the fourth single by R&B singer-songwriter Chris Brown Released August 8, 2006, from his self-titled debut album, the song is also featured in the movie Step Up. It became Brown's third top-ten single on the Billboard Hot 100, peaking at No. 10 on October 31, 2006, and the second single of his career to top the R&B charts. The track was released as a single in the UK and US. It was his first single to not chart at all in the UK.

The song is written in the key of B♭ minor in common time with a tempo of 115 beats per minute. Brown's vocals span from D♭₄ to C♭₆ in the song.

While reviewing Step Up OST, Heather Phares of Allmusic called this song "wistful" and noted that it gets the film's romantic angle across without interrupting the flow of the more danceable tracks.

The song's music video (directed by Jessy Terrero) was released July 26, 2006. It features a short clip of the track "Ain't No Way (You Won't Love Me)" at the beginning of the music video. It follows Chris Brown trying to break up with his girlfriend. He also finds a new love interest by the end of the video.

^*sales figures based on certification alone
^{^}shipments figures based on certification alone

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