Janet Mayer/Splash News Online
03/14/2014 at 08:00 PM EDT
Jennifer Hudson has lost an impressive 80 lbs.
since 2010 thanks to Weight Watchers, but now it seems she's hungry for a change.
The singer, 32, announced she's parting ways with the weight loss brand. A source confirms to PEOPLE that the contract was coming to an end and it was a mutual decision.
"I have chosen to step away from my role as ambassador and I am excited for the year to come, with many new projects and lots of new music," Hudson says in a statement to PEOPLE.
"My experience with Weight Watchers has truly been life changing. I am grateful for what I have learned throughout the process and will always take it with me."
A rep for Weight Watchers adds, "We're confident Jennifer will remain a Lifetime Member. Jennifer's healthy lifestyle and successful weight loss has inspired so many – from her friends and family to our members and staff, as well as people around the world – and we know that inspiration lives on."
Hudson recently told PEOPLE she never lost weight to keep Hollywood happy. "The key about losing weight
: You have to do it for you."
Though Hudson and Jessica Simpson have teamed up
for past commercials, Simpson has been the sole star
of the weight loss company's 2014 ads.
Reporting by JULIE JORDAN