Do you mean you want the Lyrics or the Video? For Videos they are all in YouTube. =D
Winx Club Believix Portuguese (Full Song) is here:
http://www.youtube.com/watch?v=JPAX5_Np9EU (LeoLevi88 uploaded the Full Song List of Believix Soundtrack, by clicking the username)
Song Lists (So many to list)
Magiche Canzoni Winx Club Soundtrack (Italian)
01 - Nel Segno Di Winx
02 - Oggi No
03 - Siamo Le Winx
04 - Magica Bloom
05 - Sensazione
06 - Onda magica
07 - Mi manchi
08 - Winx Combat
09 - Scioglieró
10 - Le ragazze del Winx Club
11 - Nel Segno di WInx (Instrumental)
12 - Le Ragazze del Winx Club (Instrumental)
13 - Siamo le Winx (Instrumental)
14 - Under the Sign of Winx (English Opening)
Winx Power Show (Italian)
1. Una Di Noi
2. L'attimo Che Cresce
3. Siamo Le Winx
4. Non C'e' Amore
5. Un Pizzico Di Magia|
6. Abili Guerrieri
7. Il Canto Delle Sirene
8. Il Canto Della Musa
9. Mondo Fatato
10. Fantabosco
11. Balla Con Me
12. Non Mi Arrendero'
13. Piu' Che Puoi
14. La Battaglia Finale
15. Vola Se Vuoi
Winx On Ice - Tutte le Musiche dello Show (Italian, they have this soundtrack in Russian too)
01 - Gardenia (Instrumental)
02 - Winx On Ice (Instrumental)
03 - Quando avrò voglia di sorridere
04 - Ricorda che
05 - Io ti aspetterò
06 - Il grande lieto fine
07 - Amiche per la pelle
08 - Una festa
09 - Animi nobili
10 - I sogni a modo mio
11 - Un unico respiro
12 - Ancora una poesia
13 - Young girls
14 - Amiche per la Pelle (Instrumental)
15 - I sogni a modo mio (Instrumental)
There is Winx Club The Secret of the Lost Kingdom Soundtrack:
01 - You Are The One
02 - Fly
03 - Only a Girl/Tu Puoi Credere in Te
04 - You Made Me a Women/A Un Passo da Me
05 - Enchantix (Shining so Bright)/Potere di Enchantix
06 - Stand Up/Segui il Ritmo
07 - All the Magic (in Italian Soundtrack have this in English only)
Winx Club Magical Adventure Soundtrack:
(In English, only 3 songs -A Magical World of Wonder, Big Boy, and Love Can't Be Denied- are out more coming soon)
1. Tutta la Magia del Cuore = A Magical World of Wonder
2. Believix = Believix
3. Insopportabile Alchimia = Bad Girls Good Girls
4. Per Sempre = Forever
5. Due Destini in Volo = Don't Wake Me Up
6. Fatto Apposta Per Me = Famous Girls
7. Supergirl = Supergirl
8. Mentre il Mondo Gira = Love Can't Be Denied
9. Irraggiungibile = Endlessly (Same Song From Winx Club In Concert Soundtrack)
10. Big Boy = Big Boy
11. Ora Sei Libertà = Love is a Marcile
Winx Club 4kids.tv Version Soundtrack
1. Searchin'
2. Just Us Girls
3. Feels Like Magic
4. Mean Girls
5. Being a Girl
6. This is the Beat
7. Where the Girls Are
8. Gonna Get a Little Crazy
9. Count on me
10. Winx Opening Theme (Season 1) and (Season 2 + 3)
(There's more such as Wings, Hero, Magic in My Heart, and Super Fantastic weren't in the Soundtrack)
Winx Club Season 3 Soundtrack (English)
1. Enchantix
2. Like a Princess
3. Never be Alone
4. If You're a Winx
5. I Won't Ask For More
Winx Club Season 4 Soundtrack (English)
01. Winx Are Back
02. Believix
03. Love And Pet
04. Now That's Me And You
05. The Magic Light Of Winx
06. We'll Be Together
07. Winx Open Up Your Heart
--Ending Songs in English such as Season 1 (Unknown Title), Season 2 (Unknown Title, but something like We're the Magical Winx Club), and Season 3 (If You're a Winx) For Season 4, it's Superheros from the Winx Club in Concert Soundtrack--
(There's so many more to list, but in different languages. Especially, the Winx Club in Concert Soundtrack)