Mario Lopez will wed at pal Joe Francis' Casa Aramara villa in Punta Mita, Mexico, on Saturday.
Lopez and his wife-to-be, Courtney Mazza, will stage a rehearsal dinner for family and friends like Eva Longoria on Friday night before the big day.
A source tells In Touch magazine, "The theme is a white party, with everyone being asked to dress in casual, white beach attire.
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"There will be cocktails, a taco bar with beef, chicken and seafood tacos, a fresh fruit bar and a Tequila bar, with Tequila from all over Mexico. A mariachi band and DJ will supply the music as bonfires burn on the beach."
The couple's two-year-old daughter, Gia, will serve as flower girl and the nuptials will be filmed for an upcoming TV special, Mario & Courtney's Wedding Fiesta, which will air on America's TLC channel on 8 December (12).
It's not Lopez's first wedding. He was briefly married to actress Ali Landry in 2004. The union lasted less than a month amid rumors of infidelity.
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