As an actor who specialises in playing kindhearted free spirits, Bollywood scion Ranbir Kapoor usually dances to zippy, energetic songs such as “Prem Ki Naiya” from Ajab Prem Ki Ghazab Kahani and the upbeat title track to Bachna Ae Haseeno. But "Saawariya", from the namesake 2007 romantic tragedy that launched his career, is a sensitive gem coloured by acoustic guitar and light yodeling.