Singer Yo Yo Honey Singh, who has been part of Bollywood actor Shah Rukh Khan’s Slam! The Tour, is and will not be able to perform, his spokesman said. After three back-to-back houseful concerts of Slam! The Tour in Houston, New Jersey and Washington DC, Honey Singh will not be able to perform for the remaining three concerts in the US, his spokesman said in a statement. He could not perform in Chicago on September 26.