你就是我的小星星挂在那天上放光明
[nĭ jiù shì wŏ de xiăo xīng xīng guà zài nèi tiān shàng fàng guāng míng]
Derived from the classic children's song 'Twinkle Twinkle Little Star,' it expresses admiration and fondness towards a loved one by associating them with shining stars lighting up the sky.