Kinney said when it comes to the wedding's style, Gaga, 29, will decide on everything, reported People magazine.
"We'll keep it a surprise," he said when asked about the date.
Kinney, 34, said it's important to be supportive of his fiancee after she spoke out about her experience being raped when she was 19.
"I don't prod. I don't push. I don't ask. If she wants to let something personal out, she does it on her own," he said.
Gaga and Kinney were engaged last Valentine's Day after he presented her with a heart-shaped ring. They began dating in 2011 after the couple met on the set of her music video for "You and I".