Super random but does anyone know the song JY is performing to in this clip?

Went back to watch a specific clip from Sixteen and in the first episode, this song that Jeongyeon is doing for a showcase is stuck in my head but I have no idea what it is. I tried looking up her showcase perfs but nothing came up for this one. If anyone knows please help a once out. It sounds so familiar but I can’t put my finger on it.