Summer Sonic 2010 written phonetically (Sa m ma So ni ku 2 0 1 0)
I'm presuming it's a festival of some kind? You should check if they have a way to write Summer Sonic they want you to use.
They spell it on their website.
Also, it's been a little while since I spoke it on a daily basis, so if someone who actually lives there now gives you language, you should use that.
Glad you had a cool birthday Lil_tuffy