Zoobie doo? that?s the only romantic number in the campus caper, 3 Idiots, and director Rajkumar Hirani has turned it into a tribute to all larger-than-life cinematic cliches he grew up swooning over on screen and the love songs he loves, including the Shree 420 classic, Pyaar kua ikraar hua? What a song!? he exclaims. ?I was in college when I first saw it and I was completely blown away. I still marvel over it. The sets, the passion, the feel of the rain, Raj Kapoor and Nargis? it?s the perfect image of romance.?