Singer Yo Yo Honey Singh, who has been part of Shah Rukh Khan's Slam! The Tour, got injured and won't be able to perform. After performing at 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, said his spokesperson in a statement. He couldn't perform at Chicago and Vancouver events on Sep 26 and Sep 27 respectively. The spokesperson said: "We regret to inform you that Honey Singh unfortunately will not be able to perform for the Slam! shows in Chicago, Vancouver and San Jose dated Sep 26, Sep 27 and Sep 28 respectively since he slipped and has injured himself. Doctors have advised him complete rest." (Source: IANS)