"Toothbrush" is a song by American band DNCE from their debut EP "Swaay" (2015), the song was written by which DNCE member, an American singer and actor?
Toothbrush (DNCE song):  The song was written by DNCE member Joe Jonas alongside Ilya Salmanzadeh, James Alan Ghaleb, and Rickard Göransson and was produced by Ilya.
i don't know