Jimmy Kimmel Live opened up about becoming a grandfather for the first time after Katherine, 31, and husband Chris Pratt, 41, welcomed their baby girl Lyla last August. 'Fantastic,' Arnold said of being a grandfather. 'The only thing is it makes me feel old,' he added. 'It's really great having a grandchild.
It's a beautiful, beautiful baby. Baby Lyla. I'm very proud of Katherine and Chris and they're doing really great together as parents,' Arnold said.Read more on msn.com