"That's All" is a song by Genesis. The song, a group composition with lyrics written by lead singer/drummer Phil Collins, appears as the second track on their 1983 album Genesis, and was its second single after "Mama".
The U.S. single reached No. 6 in early 1984, making it their first U.S. top-10 hit; it included "Second Home by the Sea" as the B-side. The UK single featured "Taking It All Too Hard" as the flipside, and reached No. 16. Another single included a live version of "Firth of Fifth" from 1981.
As the band's first break into the Billboard Hot 100 top 10, the song is included in Rock Song Index: The 7500 Most Important Songs for the Rock and Roll Era.
The song was intended as an attempt to write a simple pop song with a melody in the style of The Beatles. Phil Collins acknowledged in a subsequent interview that the song also features one of his attempts at a "Ringo Starr drum part".