"It was a moment I'll remember forever and always," Paula Riggs told ABC News.
Riggs is a third-grade teacher at Schrader Elementary School in New Port Richey, Florida.
She was with her class in the school's music room when the school's principal asked whether she sang to her two children when they were younger.
As Riggs began singing the songs, 24-year-old Sgt. Paul Riggs walked into the room.
Read the full story on ABCNews.com.