Question: Anthony Mandler is an American film director, music video director, television commercial director and photographer, a frequent collaborator of Rihanna, the two have worked on sixteen music videos together throughout her career, beginning with "Unfaithful", a 2006 song by Barbadian singer Rihanna from her second studio album "A Girl like Me", released in what year?
Sentence (from "Anthony Mandler"): As a music video director, his most notable and frequent collaborator is Rihanna.
Relevant evidence: No