You may not recognize this crooner without his signature chapeau, but his face really hasn't changed all that much since the time this yearbook photo was snapped. Can you guess who this lil' guy grew up to be?

Born Shaffer Smith, this formerly toothless schoolboy lived in Arkansas before he and his mama packed up and moved to Las Vegas. There, he honed his musical abilities (ranging from singing, dancing, songwriting and producing) at the Las Vegas Academy and later as a member of a now defunct R&B boy band. Fun fact: Before he adopted his now famous, two-syllable moniker, he went by the semi-similar stage name "GoGo."

Have you figured out who this chart-topping vocalist is? Click through below to see if you guessed right!