It's always an exciting event when she's in the studio. Today, the wild, hilarious and unpredictable KIRSTIE ALLEY is here! Through the years, she's been open about her struggle with her weight. She's let us follow her through her ups and downs, and today she's telling Ellen about her ambitious goal to help her stay fit in an exciting new way!

Plus, "SNL" alum CASEY WILSON is here! She's sitting down with Ellen for the first time to discuss her breakout hit comedy, "Happy Endings," the hilarious show that's on right after "Modern Family"!

Also, U.S. Gymnast JORDYN WIEBER is a rising young star in the world of gymnastics. She's on a path to becoming the favorite at this year's Olympics! This all-around national and world champion is here to show Ellen a routine from her strongest event: the uneven bars! It's a gold medal-worthy Friday on Ellen.