800 Students And Teachers Sing Bruno Mars Song In A Touching Flash Mob For Their Principal’s Sick Baby [VIDEO]

She took a leave of absence from Woodlake Elementary School in Mandeville, Louisiana to be with her baby son as he battled cancer. On the last day of school Tara Dragon Hernandez returned as the vice-principal for the school's year end assembly and was surprised, overwhelmed and moved to tears by this...watch the video after the jump!