By Erin Hicks, Everyday Health Staff Writer

Former America's Next Top Model contestant Jael Strauss shocked fans when she appeared on Dr. Phil to talk about her meth addiction looking dramatically different from her modelling days. But Strauss isn't the only person in the spotlight to be transformed, both mentally and physically, by the crippling forces of addiction. Celebrities like Amy Winehouse, Heather Locklear, and more have been caught on camera struggling with drug and alcohol addiction.

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  • Jael Strauss: Before

    The former model, who competed on America's Next Top Model in 2007, revealed to Dr. Phil she had been addicted to meth for six years.

  • Jael Strauss: Now

    She looked unrecognizable on the show with pock-marked skin, swollen facial features and rotten teeth. There is some good news: Strauss' family, <a href="http://drphil.com/shows/show/1868" target="_hplink">with the help of Dr. Phil</a>, was able to convince her to go to rehab, where they hope she can begin to heal her body and mind.

  • Amy Winehouse: Before

    Amy Winehouse's battle with drugs and alcohol received much media attention until her death in 2011. (Shown here on January 12, 2004 in London.)

  • Amy Winehouse

    One of her messiest performances was in Belgrade in June 2011, where she looked intoxicated, <a href="http://www.telegraph.co.uk/news/newsvideo/celebrity-news-video/8585060/Amy-Winehouse-drunk-on-stage-in-Belgrade.html" target="_hplink">according to The Telegraph</a>. (Shown here in a Jan. 8, 2011 file photo, performing in Florianopolis, Brazil.)

  • Heather Locklear: 2008

    In 2008, the former <a href="http://www.tmz.com/2008/09/28/heather-locklears-mug/" target="_hplink">Melrose Place star was arrested</a> in Santa Barbara, Calif., on suspicion of driving under the influence of prescription medicine.

  • Heather Locklear: 2011

    Heather Locklear arrives at the world premiere of "The Twilight Saga: Breaking Dawn - Part 1" on Monday, Nov. 14, 2011, in Los Angeles.

  • Eddie Van Halen: 2011

    The Van Halen guitarist <a href="http://www.tmz.com/2007/03/08/eddie-van-halen-checks-into-rehab/" target="_hplink">entered alcohol-related rehab</a> in March 2007, according to TMZ.

  • Eddie Van Halen: 2012

    Eddie van Halen <a href="http://www.huffingtonpost.com/2012/08/31/eddie-van-halen-diverticulitis-digestive-disease_n_1847025.html" target="_hplink">underwent emergency surgery for diverticulitis</a> in August 2012, shortly after this picture was taken.

  • Demi Moore: 2010

    The actresses was a picture of health when she filmed G.I.Jane in the late '90s and throughout the 2000s. (Demi Moore arrives during the 82nd Academy Awards Sunday, March 7, 2010, in the Hollywood section of Los Angeles.)

  • Demi Moore: 2011

    But that seemed to change after her split with husband Ashton Kutcher, when she shocked fans with her gaunt appearance and <a href="http://www.radaronline.com/exclusives/2012/01/demi-moore-adderall-drugs-seizure-hospital" target="_hplink">reports of an Adderall addiction</a> according to Radar Online.

  • Mischa Barton: 2009

    According to People Magazine, those closest to Mischa in 2009 described her as "<a href="http://www.people.com/people/archive/article/0,,20299198,00.html" target="_hplink">just too screwed up on drugs and alcohol</a>."

  • Mischa Barton: 2011

    Mischa Barton looked very different from The O.C. days when she was caught in May 2011 looking disheveled. (Shown here on May 19, 2011 in Antibes, France.)

  • Lindsay Lohan: 2008

    Lindsay Lohan shown here at the 2008 MTV Movie Awards on June 1, 2008.

  • Lindsay Lohan: 2012

    Lindsay Lohan appeared in public in 2011 flashing seemingly decayed teeth, which her father told Jane Velez-Mitchell on her HLN show, was a result of her "<a href="http://www.hlntv.com/video/2011/10/20/michael-lohan-lindsay-drug-addict" target="_hplink">smoking a pipe with meth or crack</a>." (Shown here on May 9, 2012.)

Jael Strauss
The former model, who competed on America's Next Top Model in 2007, revealed to Dr. Phil she had been addicted to meth for six years. She looked unrecognizable on the show with pock-marked skin, swollen facial features and rotten teeth. There is some good news: Strauss' family, with the help of Dr. Phil, was able to convince her to go to rehab, where they hope she can begin to heal her body and mind.

Amy Winehouse
Amy Winehouse's battle with drugs and alcohol received much media attention until her death last year. One of her messiest performances was in Belgrade in June 2011, where she looked intoxicated, according to The Telegraph.

Heather Locklear
In 2008, the former Melrose Place star was arrested in Santa Barbara, Calif., on suspicion of driving under the influence of prescription medicine.

Eddie Van Halen
The Van Halen guitarist entered alcohol-related rehab in March 2007, according to TMZ.

Demi Moore
The actresses was a picture of health when she filmed G.I.Jane in the late '90s. But that seemed to change after her split with husband Ashton Kutcher, when she shocked fans with her gaunt appearance and reports of an Adderall addiction according to Radar online.

Mischa Barton
Mischa Barton looked very different from The O.C. days when she was caught in May 2011 looking disheveled. According to People Magazine, those closest to Mischa in 2009 described her as "just too screwed up on drugs and alcohol."

Lindsay Lohan
Lindsay Lohan appeared in public in 2011 flashing seemingly decayed teeth, which her father told Jane Velez-Mitchell on her HLN show, was a result of her "smoking a pipe with meth or crack."