ABINGTON, Pa. (WPVI) -- The students and teachers at Overlook Elementary in Abington had a very sweet surprise on their last day of school.
They performed a surprise flash mob dance for the principal, Carla Greene.
The students and teachers spent the last couple of days learning the dance moves to "we are family" Greene is retiring Tuesday after 14 years as the school's principal.
Flash mob for a beloved Principal
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