Queen Latifah is about to join Kirstie Alley and Valerie Bertinelli on the Jenny Craig scene. The Oscar-nominated singer and actress, 37, is the newest celebrity spokesperson for the weight-loss chain and will help market the message of a healthy lifestyle.

"Queen Latifah joins forces with Jenny Craig to communicate the importance of how small lifestyle changes, in the areas of diet and exercise, can have positive effects on overall health," says Scott Parker, Jenny Craig's vice president of marketing.

They'll be no specific dress-size goal for the star who has always celebrated her plus-size figure and calls her body "voluptuous." She will simply be learning to live a healthier life while the public watches on.