"Dancing with the Stars" weight losses

Kirstie Alley in September 2011, left, and in March 2011, left, before she competed on "Dancing with the Stars." The 60-year-old actress, who came in second place, says she lost 100 pounds due to her "DWTS" dancing regimen, along with an organic diet and following Organic Liaison, her own weight-loss program.

Keep clicking to see how other stars trimmed down on the show.

Kyle Massey, right, and his partner Lacey Schwimmer, perform on "Dancing with the Stars," on Monday, Nov. 22, 2010, in Los Angeles. Massey has said he lost about 30 pounds during the show.

Kate Gosselin made headlines with her new physique from the rigorous rehearsals on Season 10 of "Dancing with the Stars." Here she is at the 62nd Annual Primetime Emmy Awards on Aug. 29, 2010.

Actress Tia Carrere, a new mom, is seen here before competing in Season 2 of "Dancing with the Stars" in 2006.

Tia Carrere got the press' attention with her new figure after competing on Season 2 of "Dancing with the Stars" in 2006. Here she is at the 4th annual TV Guide Emmy Awards that same year.

Marie Osmond is seen here presenting onstage at the 2006 TV Land Awards, before competing in Season 5 of "Dancing With the Stars" in 2007.

Marie Osmond performs at the 37th Annual Daytime Entertainment Emmy Awards on June 27, 2010. Osmond, whose weight shifted dramatically since her competition on "Dancing with the Stars" in 2007, has joked that the show should be called "Dancing with the Starved."

Kelly Osbourne poses at the National Television Awards on Oct. 25, 2005, in London before competing in Season 9 of "Dancing with the Stars" in 2009. After the show, Osbourne announced that she had lost 42 pounds.

Kelly Osbourne is photographed here at the 19th Annual Elton John AIDS Foundation Academy Awards Viewing Party on Feb. 27, 2011. Osbourne is 40 pounds thinner after competing on "Dancing with the Stars" in 2009.

Steve Wozniak is photographed at the 8th Annual Visual Effects Society Awards on Feb. 28, 2010, after competing in Season 8 of "Dancing with the Stars" in 2009. Wozniak never said how much he lost, but everyone could see he had to take his belt buckle in a few notches.

Actress Susan Lucci is photographed here looking even thinner than usual at the 35th Annual Daytime Emmy Awards on June 20, 2008, just after competing in Season 7 of "Dancing with the Stars" that same year.

Announcer/former NFL player Warren Sapp is photographed here in January 2009 following his appearance on Season 7 of "Dancing With the Stars" in late 2008. Sapp came in second place, behind winners Brooke Burke and Derek Hough.