Caption: 
Clockwise from top left: PM Lee Hsien Loong in a purple shirt for NDR 2017, the Fitbit fitness tracker that guests received, Madam Halimah Yacob's wefie with her union friends, and food that were served to guests at the rally.
Credits: 
PHOTOS: SCREENGRAB/PMO, FACEBOOK/HALIMAH YACOB, ST PHOTOS