R&B songwriter who won the Hal David Starlight Award from the Songwriter's Hall of Fame in 2012. His third Album, Year of the Gentleman, was nominated for a 2009 Grammy Award. His debut album, In My Own Words, included the song "So Sick," which became a #1 hit on the U.S. Billboard 200.
He performed under the name "GoGo" with a band called Envy, and found success as a songwriter while writing music for singer Marques Houston.
He played the character Agent Devoreaux in the 2015 film Sharknado 3: Oh Hell No!
He had a son named Mason Evan Smith and a daughter named Madilyn Grace Smith with Monyetta Shaw. He married Crystal Renay in 2016 and the couple welcomed a son named Shaffer Jr. that same year. In October 2017 they announced they were expecting their second child together.
In 2006, he collaborated with Rihanna on her top-ten single "Unfaithful."