By Sheila Marikar, ABC News
It's official: Jessica Simpson has another baby on the way.
Today, the 32-year-old pop star tweeted a photo of daughter Maxwell Drew Johnson sitting in front of a sand-drawn sign saying "Big Sis." It's pretty much in line with the way Simpson announced her first pregnancy, dressing up as a mummy on Halloween 2011 and tweeting, "!!!ANNOUNCEMENT!!!"
Rumors that Simpson was pregnant with a second child sparked in November. She remained mum about that while touting her increasingly slim figure as the spokesperson for Weight Watchers, a gig she scored after giving birth to Maxwell in May and admitting that she weighed 170 pounds at the height of her pregnancy.
Simpson's latest Weight Watchers commercial debuted on TV today. "I didn't need to be perfect to get here, to lose over 50 pounds on Weight Watchers," Simpson says in the ad, clad in cowboy boots and driving a pickup truck. "I love food, I love life, and I had no idea I could be so in control and so free at the same time."
It remains to be seen if Simpson will continue as Weight Watchers' spokesperson with another baby on the way. A rep for the weight loss program didn't immediately respond to ABCNews.com's request for comment.