No need to worry about sibling rivalry in the DeMarcus household. When Madeline, the daughter of the Rascal Flatts bassist, who turned 2 in December 2012, first met her newborn brother Dylan, born in July 2012, "she said, ‘Baby! Baby! Hi, Baby!’ and started waving at him," the musician shared. Then the little girl leaned over and kissed the baby on the cheek and patted his little hand. Said DeMarcus, "It was one of those moments I'll never forget as long as I live."