Kate Winslet explained to Jimmy Kimmel why her husband decided to take on such a unique moniker and the very practical reason he changed it back.

"So his birth name is Abel Smith," the Oscar winner said. "And as time went by and Ned became Ned — who is quite an original personality — he just decided at one point in his life to just change his name to Rocknroll. Ned Rocknroll. So when I met him, his name was Ned Rocknroll. This is completely true," Winslet told Kimmel (via E! Online) When he changed his name to Rocknroll, I don't think he had anticipated what might happen if he should have a girlfriend whose name was Kate Winslet and who was quite well-known and therefore the press might kind of not react so well to the fact that she had this boyfriend named Rocknroll. So, it was a little tricky.

Raising their son, Bear Blaze, and all the logistics and legalities that come with being parents is what prompted Smith to go back to his original name.

"I got to the point where I'm like, you know, I'm filling in doctors' forms and it says 'mother's name' and 'father's name', and I'm like, 'Honey...are we going to keep going?'" she said. "And he's like, 'Yeah, you're right. I'll just change it back.' So, he changed it back."