How to play Be Happy in Roblox
Copy the music ID above, then paste it into any boombox, radio gamepass or game that accepts song codes. In Roblox Studio, insert a Sound object and set its SoundId to rbxassetid://1843990564.
More pre-school music IDs
1846443851Working1845555980Working1845666237Working1836667113Working1836666756Working1846970530Working