Question: The Super Bowl XLIX halftime show took place on February 1, 2015, it featured which American singer, songwriter, actor and record producer, as a special guest?
Sentence (from "Lenny Kravitz"): His "retro" style incorporates elements of rock, blues, soul, R&B, funk, jazz, reggae, hard rock, psychedelic, pop, folk, and ballads.
Relevant evidence: No