"I am Woman" from Helen Reddy might be cool. My brothers and I would use "Like A Virgin" for our sis. But my family puts the FUN in dysfunctional!" Neil Diamond's "Forever in Blue Jeans" might fit a country girl theme, but it talks about the singer "having you." Cyndi Lauper's "girls just wanna have fun" might work well too. I am usualy pretty good at song choice but I'd need to see the pics or know your sis to do better.