Watch these grandparents get caught off guard by the most unexpected photobomb

When Juan Betancourt's parents posed for a picture in a small Colombian town, they believed their son was far away in New Jersey. Little did they know, Juan had secretly flown home to Colombia.

Separated by the distance between New Jersey and Colombia, the longing to be together as a family intensified after the birth of Juan's daughter, Violeta. Visa and financial issues kept delaying Juan's trip home, leaving his parents eagerly waiting for the chance to meet their 17-month-old granddaughter. Little did they know, a heartwarming reunion was just around the corner after months of anticipation.

Watch the grandparents' reaction as they zoom into the picture and discover who is standing behind them!

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This article originally appeared on USA TODAY: Watch grandparents realize who's standing behind them in their picture