Question: Michael Len Williams II  is best known for producing trap beats for several Southern hip hop artists as well as for producing several singles, such as which song by Barbadian recording artist Rihanna from her seventh studio album, "Unapologetic" (2012)?
Sentence (from "Diamonds World Tour"): The tour visited the Americas, Europe, Asia, Africa, and Australia with 96 shows in total.
Relevant evidence: No