"Ryder's like, 'Mom, you're cramping my style,'" she laughed. "But when I did it, he was like, 'Oh my God, we actually ...' It was the first time he even could see that we looked, you know, that he looked like his mommy."
And they're still sharing hair inspiration. "Now it's starting to grow out, and Ryder's growing his out," she said.
ET was with the actress and her co-star, Sterling K. Brown, in New York, talking about their new film Marshall, in theaters October 13th. Hudson still has her long blonde locks in the film, but right now, she's enjoying the low maintenance look.