Answer: jayz

AnswerCrossword Clue
JAYZ"Hard Knock Life" rapper
JAYZRapper with the music streaming service Tidal
JAYZRapper whose name hints at the extremities of the answers to the five starred clues
JAYZRoc-a-Fella Records co-founder
JAYZ"Empire State of Mind" MC
JAYZArtist who contributes to each of the starred entries, in a way
JAYZRapper born Shawn Corey Carter
JAYZRap star who co-owns the New Jersey Nets
JAYZRapper who co-founded Roc-a-Fella Records
JAYZFormer CEO of Def Jam
JAYZ"The Black Album" rapper
JAYZ"Magna Carta... Holy Grail" rapper
JAYZRapper-entrepreneur Shawn Carter's stage name
JAYZRapper Shawn Carter, to fans
JAYZ"Reasonable Doubt" rapper
JAYZRapper who played the first concert in Brooklyn's Barclays Center
JAYZRapper who cofounded Roc-A-Fella Records
JAYZNow hyphen-less rapper
JAYZRapper who co-founded Roc-A-Fella Records
JAYZRapper who is part owner of the New Jersey Nets
JAYZCo-headliner of 2014's "On the Run" concert tour
JAYZSupposed designer of the Brooklyn Nets logo