《Xiǎo Xīngxing》 shì yī shǒu shìjiè wénmíng de tóngyáo.
'Twinkle Twinkle Little Star' is a world-famous nursery rhyme.
Tips
memory
童 (child) + 谣 (folk song/rhyme) = children's folk songs. 谣 also appears in 歌谣 (gēyáo, folk songs/ballads) and 谣言 (yáoyán, rumors) — note the contrast between songs and rumors.