By Marisa Laudadio
10:07am PDT, Apr 15, 2018
Three months after Oscar winner Gwyneth Paltrow and writer-producer Brad Falchuk confirmed their engagement, they celebrated with a star-studded black-tie engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018. Reports even speculated that the bash, which is believed to have been thrown by Brad's producing partner Ryan Murphy, could have been a cover for a surprise wedding. The Goop founder looked stunning as she arrived at the fete wearing a one-shouldered maroon gown with a thigh-high slit and a glowing tan. Keep reading to see the groom-to-be, Reese Witherspoon, Julia Roberts, Jennifer Aniston, Cameron Diaz, Demi Moore, Steven Spielberg, Rob Lowe and many, many more of the couple's celebrity pals all dressed up for the celebration, which came a day after Gwyneth's epic VIP bachelorette party in Mexico wound down…
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Demi Moore and her boyfriend arrive at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
The marquee at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018, read "BF loves GP."
Director Steven Spielberg and wife Kate Capshaw arrive at his goddaughter Gwyneth Paltrow's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Blythe Danner arrives at daughter Gwyneth Paltrow's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Rob Lowe and wife Sheryl Berkoff arrive at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Jewelry designer Jennifer Meyer arrives at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Karlie Kloss arrives at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Tattoo artist Scott Campbell and actress wife Lake Bell arrive at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Matthew Morrison and wife Renee Puente leave Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Rashida Jones arrives at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Aaron Taylor-Johnson and his director wife, Sam Taylor-Johnson, arrive at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Designer and filmmaker Tom Ford arrives at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
Ross Mathews arrives at Gwyneth Paltrow and Brad Falchuk's engagement party at the Los Angeles Theater in downtown L.A. on April 14, 2018.
