There once was a man called James
who liked to use different names
If you're slick and astute
by removing the fruit
your favorite flava remains
What was his middle name?
His middle name is Ambrose.
The riddle is a limerick. Removing the fruit, "Lime", leaves "Rick". This points towards the musician Rick James, who used quite a few different names, one of them "Slick Rick". His real name was James Ambrose Johnson. Also, "Favorite Flava" is a song from his album "Urban Rhapsody".