啦啦啦我是卖片的小黄家
[la la la wŏ shì mài piàn de xiăo huáng jiā]
La la la, I'm little Huang (Yellow) who sells slices. 'Huangjia' phonetically sounds similar to the common last names but actually is just used humorously here. It's an amusing and carefree moniker reflecting some lighthearted personality traits.