Everyone is aware about the rumours of Yo Yo Honey Singh being grounded just because he apparently insulted superstar Shah Rukh Khan, and now it is Arijit Singh who has come under the limelight as recently the singer posted an apology on u00e2u0080u0098Facebooku00e2u0080u0099 for b-townu00e2u0080u0099s dabbang Salman Khan.