Jessica Simpson's Drink of Choice: Water
08/05/2012 AT 04:15 PM EDT
"Responsibility has drastically changed my life!" she wrote on Twitter. "Saturday night drink of choice.... WATER!"
Punctuated with a happy face, the singer-turned-fashion mogul's Tweet implies she's not missing any other beverages, though that wasn't always the case.
"I'm a free-spirited girl, but giving up my scotch? My Macallan 18? That was hard for me!" Simpson, who turned 32 last month, told ELLE of getting pregnant with her first child, daughter Maxwell Drew.
Since giving birth May 1, Simpson has been working very hard at losing her baby weight, joining Weight Watchers and using a pedometer.
Drinking water instead of scotch certainly can't hurt either!