Glenn's debut album, "World Outside My Window," has hit as high as No. 4 on the album charts, and he just came off a tour with Alicia Keys.
His style can be described as "retro-soul" -- old school R&B with a dash of silk smooth melodies, reminiscent of a young Stevie Wonder.
On "The Late Show With David Letterman," no less a star than Janet Jackson expressed her admiration for him. And it was Lewis who was selected to perform the Canadian national anthem at this year's NBA All-Star Game.
On The Saturday Early Show, he performed songs including "It's Not Fair" and "Don't You Forget It."