Cousins Kareena Kapoor and Ranbir Kapoor will share the Indian Idol 6 platform to promote their respective films. The cousins will be coming for the grand finale of the reality show on 31 August. While Kareena will be talking about her much awaited film <em>Heroine</em>, Ranbir will there promoting his upcoming film <em>Barfee</em>. The cousins will be coming for the grand finale of '<em>Indian Idol 6</em>' on 31 August.