Reese Witherspoon's 50th birthday was the crème de la crème of celebrity celebrations. Jennifer Aniston called Witherspoon her "favorite little firecracker"; Jennifer Garner played "You Are My Sunshine" for her on the saxophone. But the celebration peaked when GapStudio's Zac Posen designed her custom birthday dress as a flirty take on Spring 2026's fringe trend.
It's unclear where exactly Witherspoon rang in her milestone year, but regardless, she did it in style. Stylist Petra Flannery's gift to her star client was a custom GapStudio piece "made just for her," wrote Posen on Instagram, the lead designer of Gap's higher-priced, celebrity-beloved sister brand. He was "honored" to craft the Oscar winner's scoop-neck, little white dress from tiered rows of iridescent fringe.
