It's #KpopMonday and time for #MindYourManners - songs with please, thanks, and other politenesses in the title
ATEEZ - THANK U (Band live ver) https://youtu.be/rZidG-yfzps
Fan lore says Hongjoong wrote this to thank Seonghwa for being on his side. Of course officially, this is meant to thank ATINY for their unwavering support from the beginning.