Well from season one there's:
1- Voy Por Ti
2-Podemos
From season two there's:
1- Nuestro Camino
From season three there's:
1- Amor En Aires
If you want from like whole season then one
1- Voy Por Ti
2- Habla Si Puedes
3- Podemos
4- En Mi Mundo
Season two:
1- Ven Con Nosotros
2- Nuestro Camino
3- Hoy Somos Mas
4- Codigo Amistad
5- Yo Soi Asi (when Leon was singing it)
Season three:
1- Gira Mi Cancion
2- Amore En Aires
3- Aprendi A Decir Adios
4- Quiero
5- Underneath It All
6- Friends Till The End
Thanks fro joining in @LeonettaJortini21