Wake up early

I have been waking up late in the morning since my holidays start, as usual, i plan to sleep till around 9am today, but a noise coming from the hall near my house woke me up before that time. Kacao betul....

With my semi-conscious mind i try to figure out what noise is that. It's not a fighting noise(like my previous post), nor the aunties' high pitch chit-chatting voice that passing by in front of my house, it's a SONG! Sang by a group of children. Then i listen carefully, it sounds so familiar. Oh, i remember, it's Children's Day song that i used to sing when i was in primary school.

Children's Day was the most memorable event in my younger days. That day, all classes were canceled and the best part was, we didn't have to wear uniform that day (but now i miss wearing it). Annual singing competition was held on that day as well, i joined it every year, but only won a few times. In conclusion, good old days.....

I tried to find the song's lyric on the internet, but can't find the one i used to sing. I rewrite the lyric below using my memory, correct me if i make any mistake:

今天是儿童节
兄弟姐妹来庆祝
世界为我儿童有
太阳为我儿童出
啦啦啦
无拘束
有情享乐就满足
歌舞表演觅欢娱
(cannot remember the rest)