Draco and the Malfoys rock bank take their personas from a novel written by this author?
Draco and the Malfoys: Draco and the Malfoys are a wizard rock band founded in Woonsocket, Rhode Island in 2004. Draco and the Malfoys:  The group is composed of half-brothers Brian Ross and Bradley Mehlenbacher, who both perform under the persona of Draco Malfoy from the "Harry Potter" book series. Draco Malfoy: Draco Lucius Malfoy is a character in J. K. Rowling's "Harry Potter" series.
J. K. Rowling