Gwyneth Paltrow thanks fiancé Brad Falchuk for 'true happiness' following engagement party

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Gwyneth Paltrow has found "true happiness" and its all thanks to fiancé Brad Falchuk, whom she thanked on Instagram following the couple's seriously star-studded engagement party on Saturday (Apr. 14). The actress also said that she and her future husband are the "luckiest people on the planet" as she showed her appreciation for Brad's Glee co-creator, Ryan Murphy, who threw the loved-up couple their "incredible" pre-wedding celebration.

"Thank you #ryanmurphy for the most incredible evening to celebrate our (love)," she wrote on Instagram, alongside a picture from the party. "There will never be adequate words to express our gratitude. @giambattistavalliparis I will never get over my gorgeous dress. @georgieeisdell thank you. @hairbylorenzomartin thank you. @teamsaltzman thank you.

"Thank you to all of our amazing true and dear friends who came to support us. We feel like the luckiest people on the planet because we have all of you in our lives. And most of all thank you @bradfalchuk for the true happiness."

CLICK HERE TO SEE ALL THE ENGAGEMENT PARTY PICS XXGwyneth and Brad, seen here in a previous Instagram selfie, celebrated their engagement with 400 guests in LA

Among the 400 guests at the bash, which was held at The Los Angeles Theatre, were Jennifer Aniston, Cameron Diaz and her husband Benji Madden, Julia Roberts and her husband Danny Moder, Demi Moore, Reese Witherspoon, Steven Spielberg, Liv Tyler, and pregnant Kate Hudson. The engagement party followed the Oscar winner's equally glamorous week-long bachelorette party in Mexico, where the bride-to-be was joined by Cameron, designer Stella McCartney and more close pals.

RELATED: See more celebrities who got engaged in 2018

The Iron Man star and TV producer announced their engagement in January. This will be the second marriage for the actress, who shares two children, Moses and Apple, with ex-husband Chris Martin.

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