Akshay Kumar, Imran Khan pull Sonakshi Sinha's leg

During the shoot of 9X Media's signature "Tung tucking ting" tune, Akshay and Imran indulged in some leg-pulling.

While Sonakshi was enthusiastically singing the theme song, the boys instantly held her neck and shook her. Sonakshi was quite taken aback. Then Akshay and Imran promised her that they wouldn't trouble her anymore, but they continued to repeat the act whenever the leading lady started singing the number, said a source.