"Now She Knows She's Wrong" is a song by the American power pop group Jellyfish. It is the fourth single released in support of their 1990 debut album Bellybutton.

European 7" single (CUSS 3)

1. "Now She Knows She's Wrong" – 2:35
2. "Bedspring Kiss" – 5:02
3. "She Still Loves Him" (live) – 4:11
4. "Baby's Coming Back" (live) – 2:57

European 12" single (Cust 3)

1. "Now She Knows She's Wrong" – 2:35
2. "Bedspring Kiss" – 5:02
3. "The Man I Used to Be" (live) – 4:46
4. "Calling Sarah" (live) – 4:02

European CD single (CUSCD 3)

1. "Now She Knows She's Wrong" – 2:35
2. "Bedspring Kiss" – 5:02
3. "Let 'Em In"/"That Is Why" (live) – 4:56
4. "The King Is Half-Undressed" (live) – 3:43

• "The Scary-Go-Round E.P." at Discogs (list of releases)