- Κυκλοφόρησε: 17 Ιουνίου 2008
- Εταιρεία: Capitol
- Μορφή: LP, CD, digital download
- Πιστοποιήσεις: RIAA: Platinum, ARIA: 2× Platinum, BPI: 2× Platinum, BVMI: 3× Gold, FIMI: Gold, IFPI AUT: Platinum, IFPI SWI: Gold, MC: 3× Platinum, RMNZ: Gold, SNEP: 2x Platinum
- Singles από το “One of the Boys”:
- “I Kissed a Girl” Κυκλοφόρησε: 28 Απριλίου 2008
- “Hot n Cold” Κυκλοφόρησε: 9 Σεπτεμβρίου 2008
- “Thinking of You” Κυκλοφόρησε: 12 Ιανουαρίου 2009
- “Waking Up in Vegas” Κυκλοφόρησε: 21 Απριλίου 2009
Tracklist:
1. “One of the Boys” 4:07
2. “I Kissed a Girl” 3:00
3. “Waking Up in Vegas” 3:19
4. “Thinking of You” 4:06
5. “Mannequin” 3:17
6. “Ur So Gay” 3:39
7. “Hot n Cold” 3:40
8. “If You Can Afford Me” 3:18
9. “Lost” 4:16
10. “Self Inflicted” 3:25
11. “I’m Still Breathing” 3:48
12. “Fingerprints” 3:44
iTunes Store bonus track:
13. “I Think I’m Ready” 2:36
iTunes deluxe edition bonus tracks:
14. “I Kissed a Girl” (Rock Remix) 2:56
15. “I Kissed a Girl” (music video) 3:05
Wal-Mart special edition bonus download:
13. “A Cup of Coffee” 4:12
Japanese edition bonus tracks:
13. “I Kissed a Girl” (Rock Mix) 3:01
14. “A Cup of Coffee” 4:12
New edition bonus tracks (Japanese / Korean):
13. “Hot n Cold” (Manhattan Clique Remix Radio Edit) 3:52
14. “I Kissed a Girl” (Morgan Page Remix – Main) 4:03
15. “I Kissed a Girl” (Video) 3:10
16. “Hot n Cold” (Video) 3:48
17. “Thinking of You” (Video) 4:07
Platinum vinyl edition: Bonus remix EP:
1. “I Kissed a Girl” (Dr. Luke & Benny Blanco Extended Remix) 6:05
2. “I Kissed a Girl” (The Knocks Remix) 4:36
3. “I Kissed a Girl” (Norman & Atalla Main Mix) 3:42
4. “I Kissed a Girl” (Morgan Page Main Mix) 4:03
5. “Hot n Cold” (Innerpartysystem Main Mix) 4:37
6. “Hot n Cold” (Bimbo Jones Remix Radio Edit) 3:50
7. “Hot n Cold” (Manhattan Clique Long Edit) 4:38
8. “Hot n Cold” (Yelle Remix) 6:03
Platinum Australian tour edition: Disc 2 / The Hello Katy Australian Tour EP:
1. “Electric Feel” (Live @ Jo Whiley’s BBC Radio 1 Live Lounge) 3:30
2. “Black and Gold” (Live on Nova 100FM, Melbourne) 3:26
3. “I Think I’m Ready”2:37
4. “Thinking of You” (Acoustic Version) 4:51
5. “Waking Up in Vegas” (Calvin Harris Remix Edit) 3:43
6. “I Kissed a Girl” (Dr. Luke & Benny Blanco Remix) 3:29
7. “Hot n Cold” (Bimbo Jones Remix Radio Edit) 3:50
8. “Ur So Gay” (DJ Skeet Skeet & Cory Enemy Remix) 4:00