Mumbai, Feb 10 (IANS): They get along well enough to be called friends after their bonding in Macau for the Zee Cine Awards -- and now Ranbir Kapoor has made a special request to Shahid Kapoor to join him on a world tour in August.

Shahid is trying his utmost to adjust his dates to accompany Ranbir.

Confirming these developments, Ranbir's father Rishi Kapoor, who would also be the tour's producer, said: "Shahid and my son have become good friends. He is likely to join us. The rest of the details are still being finalized."

Shahid earlier had to opt out after his next film directed by Maneesh Sharma got delayed because of the director's back problem. But then, something unforeseen happened and Ranbir's bonding with Shahid got stronger in Macau during their performance at the Awards.

Regarding his own performance on stage with his son, Rishi said: "There's a demand for it. But whether my injured knees allow me the pleasure of dancing with my son, remains to be seen."

Besides Ranbir, Shahid and Katrina Kaif, the world tour would also feature Priyanka Chopra and Anushka Sharma.