| # | Title | Artist | Rating | Length |
|---|
| 1 | Já sei Namorar | Tribalistas | | 3:16 |
| 2 | Boa sorte / Good Luck | Vanessa da Mata & Ben Harper | | 3:53 |
| 3 | I’m Like a Bird | Nelly Furtado | 4.4 | 4:01 |
| 4 | Maria Albertina | Humanos | | 3:07 |
| 5 | Everybody’s Changing | Keane | 3.75 | 3:34 |
| 6 | This Love | Maroon 5 | 4.15 | 3:25 |
| 7 | Yellow | Coldplay | 3.3 | 4:29 |
| 8 | Star | Reamonn | 3.65 | 4:13 |
| 9 | Intervalo | Per7ume & Rui Veloso | | 3:54 |
| 10 | Other Side of the World | KT Tunstall | | 3:32 |
| 11 | Fácil de entender | The Gift | | 4:45 |
| 12 | You’ll Follow Me Down | Skunk Anansie | | 4:03 |
| 13 | Gabriel | Lamb | | 4:15 |
| 14 | The Story | Brandi Carlile | 3 | 3:53 |
| 15 | Love Song | Sara Bareilles | 3.9 | 4:18 |
| 16 | Sei‐te de cor | Paulo Gonzo | | 4:04 |
| 17 | Encosta‐te a mim | Jorge Palma | | 4:20 |
| 18 | Drops of Jupiter | Train | | 4:20 |
| 19 | Who Knew- recording engineer:
- Lasse Mårtén (in 2006), Francesco Perlangeli (in 2006) and Josh Wilbur (in 2006)
- drums (drum set) programming:
- Łukasz Gottwald (in 2006) and Max Martin (in 2006)
- assistant engineer:
- Tim Roberts (task: engineered for mix)
- engineer:
- John Hanes (task: engineered for mix)
- producer:
- Dr. Luke and Max Martin
- mixer:
- Serban Ghenea
- drums (drum set):
- Lasse Mårtén (in 2006)
- guitar:
- Łukasz Gottwald (in 2006) and Max Martin (in 2006)
- orchestra:
- Leon Pendarvis (in 2006)
- orchestrator:
- Leon Pendarvis
- phonographic copyright (℗) by:
- RCA Records (in 2006)
- recorded at:
- Conway Recording Studios in Hollywood, Los Angeles, California, United States (in 2006) and Decibel Studios in Stockholm, Stockholms län , Sweden (in 2006)
- mixed at:
- MixStar Studios in Virginia Beach, Virginia, United States
- music videos:
- Who Knew (music video) by P!nk
- recording of:
- Who Knew (in 2006)
- lyricist and composer:
- Alecia Moore , Łukasz Gottwald and Martin Sandberg
- publisher:
- EMI Blackwood Music Inc., Kasz Money Publishing , Kobalt Songs Music Publishing and P!nk Inside Publishing
| P!nk | 3.35 | 3:27 |