It is not permissible to listen to songs if such songs usually cause ‘tarab’. ‘Tarab’ means the psychological interaction with the music or singing, whether it leads to joy, sadness, pride or any other emotion. Even if this is not the case, attending such ceremonies is prohibited if it encourages and propagates prohibited acts and evil.
It is permissible to look at the picture without sexual desire. But if looking at her is shameful for her, as she observes the hijab, or is respected in the society, and similar reasons, it is prohibited to look at the photograph even without lust.