( CNN ) -- Jacob Williamson captured our h-e-a-r-t-s at the Scripps National Spelling Bee finals this week in Maryland . The 15-year-old was confident , enthusiastic and wore his emotions on his sleeve -- the perfect ingredients for a viral video . `` I know it ! I know it ! I totally know it ! '' he said when he was given the word `` kabaragoya '' ( a large lizard native to Asia ) . His excitement made viewers smile -- and then cringe when he misspelled the word with a C instead of a K. His reaction to learning his mistake was a stunned , `` What ! ? '' The video of his final mistake has made Williamson an Internet sensation . One website even set his ordeal to rap music . 1986 spelling bee winner : National contest is n't bee-all and end-all . What to know about the spelling bee . The agony and ecstasy of the National Spelling Bee .
Jacob Williamson captured attention with his enthusiastic response . Williamson said , ` ` I totally know it , '' before misspelling final word . It has become Internet sensation .