"That Is Why"
Single by Jellyfish
from the album Bellybutton
B-side	"Calling Sarah"
Released	1990 (1990)
Recorded	Various Bill Schnee Studios (Los Angeles, CA) Ocean Way Recording (Hollywood, CA) Studio 55 (Los Angeles, CA)
Genre	Power pop indie rock
Length	4:16 (album version) 3:43 (radio edit)
Label	Charisma
Songwriters	Roger Manning Andy Sturmer
Producers	Albhy Galuten Jack Joseph Puig
Jellyfish singles chronology
"The King Is Half-Undressed" (1990) "That Is Why" (1990) "Baby's Coming Back" (1990)

"That Is Why" is a song by the American power pop group Jellyfish. It is the second single released in support of their 1990 debut album Bellybutton.

All songs written by Roger Manning and Andy Sturmer

European 7" single (114 091)

1. "That Is Why" (edit) – 3:43
2. "Calling Sarah" – 4:03

US promotional CD single (PRCD 019)

1. "That Is Why" (edit) – 3:43
2. "Calling Sarah" – 4:03
3. "The Man I Used to Be" – 4:34

• "That Is Why" at Discogs (list of releases)