 Zee News | PIX: Rahman, Ranbir rock Mumbai Rediff Everything at the 'Live In concert' to promote Ranbir Kapoor's forthcoming movie Rockstar was commonplace. The 10000-strong crowd gathered in the grounds of Bhawan's College in Andheri, a north Mumbai suburb, did all that they were supposed to do. ... Kareena and I couldn't act together: Ranbir 'Rockstar' Ranbir Kapoor rocks at a live concert in Mumbai Photos : Ranbir Kapoor and AR Rahman rock the 'Rockstar' concert |