Watch an Entire Plane Sing ‘Happy Birthday’ to Paralyzed Girl

It's a flight one little girl will never forget.

Everyone aboard a Southwest Airlines flight from Tampa to Pittsburgh sang "Happy Birthday" to Mazzy, a girl with spina bifida who was celebrating turning four years old.

Mazzy, who is paralyzed below the chest, was flying home from vacation with mother and sister when her sister insisted on telling the crew about Mazzy's big day. To her astonishment, the crew -- and the other passengers -- all belted out "Happy Birthday."

She then got a makeshift cake and princess crown. Watch for yourself, prepare to wipe away some tears and then remember that sometimes flying can be a fun experience.