Question: New Zealand top 50 singles of 2014 contained a song by Eminem that had guest vocals from what Barbadian singer?
Sentence (from "New Zealand top 50 singles of 2014"): Four songs also featured in the New Zealand top 50 singles of 2013: Katy Perry's songs "Roar" and "Dark Horse", "I See Fire" by Ed Sheeran, "The Monster" by Eminem and "Timber" by Pitbull.
Relevant evidence: Yes