Super-duper Singing Sunday Send-off Celebration

One of our college kids is leaving to join the Air Force tomorrow, so his girlfriend organized a big party at a small restaurant, and she made him a cake. We all met at the restaurant and got seated, and our waitress kindly offered to put the home made cake in the refrigerator until after lunch. So, she brought the cake out after lunch. It seemed appropriate to us all to sing for our friend as he was presented with his cake, but we were slightly perplexed as to what to sing. One of the kids promptly led us all in "America, the Beautiful"; that seemed an appropriate song. We only got a few puzzled looks from the other customers.