Music Banter - Music themes for a teacher training course

Hi :)) I'm a spanish psychologist actually in Uganda about to start a training for teachers in Positive Psychology. I'm looking for music themes for the first units of my course. A catchy tune will help improve the engagement of the participants, also the recalling and better integration of the contents.

I have to admit, despite I enjoy music, I'm very bad at remembering the right songs for the right moment. I'm asking for some help, if anyone is willing to give me a hand looking for thematic songs for any of these subjects:

1 - NEEDS: what are our basic needs 2 - VALUES and PURPOSE: what is important for us in life 3 - EXPECTATIONS: how do we decide according to the benefits we think our choices will bring to us.

Ideally, they should preferably be well known, of easy sticky rhythm, like big hits or classics of friendly tunes. The typical song one easily finds himself humming without almost realizing.

Thank you very very very much in advance if you decide to help,

S.