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Tracklist Hide Credits

1	So Yesterday	3:37
2	Workin' It Out Mixed By – Joel SoyfferProducer, Written-By – C. Midnight*, C. Pettus*, M. Swersky*	3:17
3	So Yesterday (Thunderpuss Remix) Remix – Thunderpuss	4:18

Credits

• Executive-Producer – Andre Recke, Jay Landers
• Producer, Arranged By, Recorded By, Mixed By – The Matrix (tracks: 1, 3)
• Written-By – Charlie Midnight (tracks: 1, 3), Graham Edwards (tracks: 1, 3), Lauren Christy (tracks: 1, 3), Scott Spock (tracks: 1, 3)

Notes

Comes in a gatefold digipak and includes poster.

Track 3 listed as "Thunderpuss Remix", but is actually the Radio Edit/Mix.

Barcode and Other Identifiers

• Barcode: 5050466928825

Other versions

Category	Artist	Title (Format)	Label	Category	Country	Year
61014-7	Hilary Duff	So Yesterday ‎(CD, Single, Enh)	Buena Vista Records, Hollywood Records	61014-7	US	2003
ED-11650-1	Hilary Duff	So Yesterday (Radio Edit Remix) ‎(12", Promo)	Hollywood Records	ED-11650-1	US	2003
50-50466-9269-2-0	Hilary Duff	So Yesterday ‎(CD, Maxi, Enh)	Hollywood Records, Buena Vista Records	50-50466-9269-2-0	Europe	2003
PRO4309	Hilary Duff	So Yesterday ‎(CD, Single, Promo)	Buena Vista Records, Hollywood Records	PRO4309	Europe	2003
AWCW-12359	Hilary Duff	So Yesterday ‎(CD, Single, Copy Prot., Enh)	Buena Vista Records, Hollywood Records	AWCW-12359	Japan	2003