The "Can't Take My Eyes Off You" singer also has two daughters ... hitmaker has two grandchildren - including Broadway star Olivia Valli, who's starring in Wicked. The famous crooner is currently ...

Olivia also has remixed Frankie Valli's "Can't Take My Eyes Off You" and Aaron Carter's "I Want Candy" for previous cookie-selling campaigns. By showcasing her musical talents, Olivia said ...