Actors Vivek Oberoi, Shakti Kapoor, Jackie Shroff, Amisha Patel, Mahima Chaudhary and Sonu Sood, and singers Kailash Kher, Abhijeet and Mika were some of those caught on camera accepting the deal for toeing the agenda of a political party or endorsing it for money. Cobra Post on Tuesday released the sting operation in a video documentary titled 'Operation Karaoke'. Vidya Balan, Raza Murad, Arshad Warsi and TV actor Saumya Tandon were the only ones who refused the offer.