"I wasn't familiar that they were taking the trip. My understanding is that they went through a group that organises these educational trips down to Cuba. This is not something that the White House was involved with. We've got better things to do." U.S. leader President Barack Obama insists he had no knowledge of pals Jay-Z and Beyonce's recent trip to Cuba, even though the rapper namechecked him in his new song about the controversial trip.