Nelle prime due stagioni la sigla è interpretata da Amy Jo Johnson (interprete di Julie); nelle ultime due stagioni la sigla è invece "New Version of You", scritta ed interpretata da J.J. Abrams e Andrew Jarecki.

IL TESTO DI "NEW VERSION OF YOU"
di J.J. Abrams e Andrew Jarecki

Can you become
can you become
a new version of you?
New wallpaper,
new shoe leather,
a new way home,
I don't remember.
New version of you,
I need a new version of me...
New version of you,
I need a new version of me...

Esistono due soundtrack ufficiali della serie:

Felicity: Senior Year [SOUNDTRACK]

Track List:
1. King of Yesterday - Jude
2. Melody of You - Sixpence None The Richer
3. La Cienega Just Smiled - Ryan Adam
4. Far Away - Chantal Kreviazuk
5. Anywhere You Go - Shawn Colvin
6. Here Nor There - Andy Stochansky
7. Tell Yourself - Natalie Merchant
8. Call And Answer - Barenaked Ladies
9. Bend - Shelby Lynne
10. Scratch - Kendall Payne
11. Perfect - Maren Ord
12. Casual Viewin' - 54-40
13. New Version of You (sigla 3° e 4° stagione) - J.J. Abrams e Andrew Jarecki

 Felicity: Music From The Hit Television Series

Track List:
1. She Will Have Her Way - Neil Finn
2. Heart And Shoulder - Heather Nova
3. Good Enough - Sarah McLachlan
4. I've Got A Feeling - Ivy
5. Day Before Yesterday - Scout
6. Hermes Bird - Remy Zero
7. All I Need - Air
8. Bridge Over Troubled Water - Aretha Franklin
9. Everyday Down - Joan Jones
10. Angels - Joe Henry
11. Puddle Of Grace - Amy Jo Johnson
12. Slingshots - Morley
13. Here Comes The Flood - Peter Gabriel
14. This Woman's Work - Kate Bush
15. Felicity Theme (sigla 1° e 2° stagione)