( 1, 2, 3, 4 ) When I'm fat and old and my kids think I'm a joke 'Cause I move a little slow when I dance I can count on you after all that we've been through 'Cause I know that you'll always understand I won't act my age, no, I won't act my age. No, I'll still feel the same around you Hey ! When I'm fat and old and my kids think I'm a joke 'Cause the stories that I told I tell again and again I can count on you after all we got up to 'Cause I know that you truly understand I won't act my age, no, I won't act my age. No, I'll still feel the same around you I won't act my age, no, I won't act my age. No, I'll still feel the same and you will, too Hey ! When I can hardly walk and my hair is falling out We'll still stay up 'til morning We'll throw the after party, oh, yeah, oh, yeah I won't act my age, no, I won't act my age. No, I'll still feel the same around you I won't act my age, no, I won't act my age. No, I'll still feel the same and you will, too Hey !