The star-duo will join hosts Salman Khan and Sanjay Dutt for the 'Aapka Farman' episode of the show on Saturday, the day of eviction.
Earlier, actor Ranbir Kapoor and singer Mohit Chauhan were on the show to promote their film 'Rockstar'. Ranbir even entered the 'Bigg Boss' house and interacted with the contestants.
'Desi Boyz', directed by debutant Rohit Dhawan, also stars Deepika Padukone and Chitrangada Singh in lead roles and is due for release on November 25.