Photos: Mario Lopez through the years

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Photos: Mario Lopez through the years

Photos: Mario Lopez through the years

Believe it or not, actor Mario Lopez celebrates his 40th birthday on Oct. 10, 2013. Keep clicking to see more photos of the former "Saved by the Bell" star through the years. Here, Mark-Paul Gosselaar (Zack Morris, left), Tiffani Thiessen (Kelly Kapowski, left center), Lark Voorhies (Lisa Turtle, center), Elizabeth Berkley (Jessie Spano, right center) and Mario Lopez (A.C. Slater, right) star in "Saved by the Bell: Season Two."

Elizabeth Berkley (Jessie Spano) and Mario Lopez (A.C. Slater) star in "Saved by the Bell."

Mario Lopez as A.C. Slater in "Saved by the Bell."

Mario Lopez as A.C. Slater in "Saved by the Bell."

Mark-Paul Gosselaar (left) as Zack Morris and Mario Lopez as A.C. Slater in "Saved by the Bell."

Mario Lopez as Greg Louganis in "Breaking the Surface: The Greg Louganis Story" on USA Network.

Actor Mario Lopez and model Ali Landry arrive at Maxim magazine's Maxim Motel party Aug. 10, 2000, in Los Angeles.

Bonnie Summerville looks at Mario Lopez upon arriving at the opening of the Palms Casino Resort on Nov. 15, 2001, in Las Vegas.

Actor Mario Lopez plays in a softball game between the Hollywood All-Stars and the San Francisco 49ers alumni June 8, 2002, at the Network Associates Coliseum in Oakland, Calif.

Danny Bonaduce and Mario Lopez at NBC's TCA Summer Tour Party at the Ritz-Carlton in Pasadena, Calif., on July 24, 2002.

Actor Mario Lopez and sisters Chica and Marissa attend "The Ultimate Celebrity Super Bowl Bash," co-hosted by Access Hollywood and Controversy Magazine at the Stu Segall Studios on Jan. 24, 2003, in San Diego, Calif.

Boxer Jose Navarro (left) and actor Mario Lopez attend the 2003 Rising Stars Gala held on Nov. 14, 2003, at The Century Plaza Hotel & Spa in Century City, Calif.

Actors Ali Landry (left) and Mario Lopez attend the CBS/UPN's Super Bowl XXXVIII Party during the 2004 Winter Press Tour at the Avalon Hollywood in Hollywood, Calif.

Actor Mario Lopez poses with Playboy Playmates Ava Fabian (left) and Nicole Narain at "Fight for Victory," the 13th annual Espy Pre-Party hosted by Andy Roddick at the Playboy Mansion on July 12, 2005, in Beverly Hills, Calif.

Palms girls models pose with television personality Mario Lopez during a party held to introduce the Hardwood Suite in the new $600 million, 347-room Fantasy Tower under construction at the Palms Casino Resort on Oct. 27, 2005, in Las Vegas.

Actors Heidi Mueller (left) and Mario Lopez arrive at the third annual Alfred Mann Foundation Innovation & Inspiration Gala at the Mann Estate on Sept. 9, 2006, in Los Angeles.

Actors Joey Lawrence (left) and Mario Lopez present the award for Big Comeback onstage during the VH1 Big in '06 Awards held at Sony Studios on Dec. 2, 2006, in Culver City, Calif.

Actor David Hasselhoff (left) accepts the award for Big Comeback from actor Mario Lopez onstage during the VH1 Big in '06 Awards held at Sony Studios on Dec. 2, 2006, in Culver City, Calif.

TV personality Tanika Ray (left) and actor Mario Lopez arrive at the 64th annual Golden Globe Awards at the Beverly Hilton on Jan. 15, 2007, in Beverly Hills, Calif.

Host Mario Lopez speaks during the 2007 Miss America Pageant at the Aladdin Theatre for the Performing Arts on Jan. 29, 2007, in Las Vegas.

Actor Mario Lopez (left) and actress Eva Longoria announce the 2007 ALMA Award nominees at the Beverly Hilton Hotel on April 16, 2007, in Los Angeles.

TV personalities Kristin Cavallari and Mario Lopez attend the Preview Party of the new Speedy Collection on April 19, 2007, in Los Angeles.

Actor Mario Lopez and actress Eva Longoria pose backstage during the 2007 NCLR ALMA Awards held at the Pasadena Civic Auditorium on June 1, 2007, in Pasadena, Calif.

Mario Lopez mixes margaritas on Jet Blue flight during the "Extra" takes Mario Lopez and cast of "A Chorus Line" to L.A. on April 20, 2008, in New York City.

Mario Lopez signs copies of his book "Mario Lopez's Knockout Fitness" at Barnes and Noble, The Grove, on May 15, 2008, in Los Angeles.

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Believe it or not, actor Mario Lopez celebrates his 40th birthday on Oct. 10, 2013. Keep clicking to see more photos of the former "Saved by the Bell" star through the years. Here, Mark-Paul Gosselaar (Zack Morris, left), Tiffani Thiessen (Kelly Kapowski, left center), Lark Voorhies (Lisa Turtle, center), Elizabeth Berkley (Jessie Spano, right center) and Mario Lopez (A.C. Slater, right) star in "Saved by the Bell: Season Two."

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