Whenever I'm in public, I get the urge to sing loudly.
I'm not sure that's such a good idea. Don't you think that would annoy people?
I just want to feel connected to the people around me!
I understand that you want to connect with the world, but singing at the top of your voice in public is annoying to everyone around. Find another way to connect with others.
Everyone is so focused on themselves, singing loudly is the only way to get them to look around.
While I think you have good intentions with wanting to sing, there are better ways to get people to connect with the people around them. Instead of singing, why not just try to strike up a casual conversation with someone? That way, you aren't annoying the people in the area, but are causing someone to connect with you.