"Of course!" he proclaimed when asked if he approves of Pratt. "He's the best! He's honestly such a great guy, so I'm happy for my sister that's all you want as a brother, to have your sister happy and have that someone great."
When asked if he thinks it might be weird to be related to an Avenger, he replied: "No, I hope he protects me at all costs."
Arriving with 23-year-old model Taylor Hill, he wore jeans, cowboy boots, a black jacket and bow tie for the big night. All along the red carpet he carried a cowboy hat, though he never put it on.
"You know me, man. I wear cowboy everywhere," he told ET when asked if he'll be wearing his country duds to his sister's wedding. "She would love it! Are you kidding me. My dad would love it too. This hat doesn't fit though, but it's vintage. It's cool."