It's Kirstie!

Kirstie Alley re-emerged in Los Angeles on Thursday. It's one of the first times the star, 59, has stepped out since announcing a major weight loss milestone on Twitter last week.

"I've lost over 50 lbs...and I'm having the time of my of my life...30 more to goooooo," Alley wrote.

The actress and mother of two has been slimming down with new food line Organic Liaison. Last year, she revealed that she'd tipped the scales at 230 pounds -- after losing 75 pounds with Jenny Craig back in 2006.

Her weight loss struggles are documented on her A&E reality show The Big Life.