Bollywood's next superstar Ranbir Kapoor turns 31, today, September 28. This charming actor, who was born to a star studded Kapoor family made his Bollywood debut in 2007 and has been evolving tremendously since then. From being the 'Towel boy' in Saawariya to playing a mute role in Barfi, Ranbir has impressed us with his versatile roles on screen.