US HIP-HOP GIANT Jay-Z may have inadvertently added another problem to the 99 already on his list after the NBA confirmed that they would opening an investigation into his conduct at last week’s NCAA Championship.

The musician, whose real name is Shawn Corey Carter, visited the Kentucky Wildcats’ locker room on Sunday evening after their victory over the University of North Carolina in the annual college basketball tournament.

The game took place at the Prudential Centre in Newark, home to the New Jersey Nets who are partially owned by Jay-Z. The rap artist formed part of an investment group led American real-estate developer Bruce Ratner who purchased the team for $300m in 2005. The group subsequently sold an 80% share in the team to Russian billionaire Mikhail Prokhorov for $200m in 2009.

Despite the fact that his share was diluted by the sale, Jay-Z is still considered to be a “team owner” by the NBA and as such is prohibited from entering into contact with college players who are not yet draft eligible.

League spokesman Tim Franks confirmed to the Associated Press that the NBA were looking into the matter.