http://copywritrix.wordpress.com/2008/04/20/hit-songs-of-ar-rahman-whats-the-common-factor/
Here's an interesting observation. A big majority of hit songs from AR Rahman has one common factor - the first one or two words getting repeated. Is this a secret technique Rahman had perfected over the years, or just a coincidence? Hope you enjoy going through the list. Feel free to add any songs which I may have missed out. Ale Ale – Boys Anbae Anbae – Jeans Anjali Anjali – Anjali Asathura Asathura – Enakku 20 Unakku 18 Balleilakka ballelakka – Sivaji Barota Barota – Vandi Solai Chinnaraasu Boom Boom – Boys Chikkubukku Chikkubuku - Gentleman Chinna Chinna Asai – Roja Chotta Chotta – Taj Mahal Columbus Columbus – Jeans Come on Come on – Love Birds Dippu Dippu Kumare – Baba Dol Dol Dol – Ayutha Ezhuthu Dolna Dolna – Parasuram En Kadhale En Kadhale – Duet En Swasakatre En Swasakatre – En Swasa Katre Enekke Enakkaa – Jeans Enna Enna – Udaya Ennavale Adi Ennavale Ennuyire Ennuyire – Uyire Hey Hey Ennachu – Kadhal Virus Ilamai Ilamai – Godfather Injirango Injirango – Thenali Jodi Jodi – Guru Jumbalakka Jumbalakka – En Swasa Katre Kaathu Kaathu Dinam – Udaya Kama Kama – Enakku 20 Unakku 18 Kandukondein Kandukondein – Kandukondein kandukondein Kannum Kannum Kollaiadithal – Thiruda Thiruda Kaviriya Kaviriya – Desam Kuchi Kuchi Rakamma – Bombay Kuliruthu Kulirithu – Taj Mahal Lucky Lucky – Ratchagan Majja Majja – Jillendru Oru Kadhal Malargale Malargale – Love Birds Maname Maname – Kadhal Sangamam Maramkothiye Maramkothiye – Aa Aah Markazhi Poove Markazhi Poove – May Maadham Maya Maya – Baba Mayea Mayea – Guru Musthafa Musthafa – Kadhal Desam Muthu Muthu – Mr.Romeo Nathiyae Nathiyae – Rhythm Nenje Nenje – Ratchagan Oh Maria Oh Maria – Kaadalar Dinam Onne Onne – Alli Arjuna Oruvan Oruvan Muthalali – Muthu Pachai Nirame Pachai Nirame – Alai Payuthe Paisa Paisa – Guru Parkathey Parkathey – Gentleman Pennalla Pennalla – Uzhavan Rasika Rasika – Star Roja Roja – Kaadalar Dinam Rukumani Rukumani – Roja Sakthi Kodu Sakthi Kodu – Baba Samba Samba – Love Birds September Madham September Madham – Alai Payuthey Shakalaka Baby Shakalaka Baby Signore Signore – Kannathil Muthamittal Smiyayi Smiyayi – Kandukondein Kandukondein Snehithane Snehithane – Alai Payuthey Soniya Soniya – Rathchagan Sugam Sugam – Vandi Solai Chinnarasu Suthi Suthi Vandhiga – Padaiyappa Swasame Swasame – Thenali Thamizha Thamizha – Roja Thaya Thaya – Uyire Thee Thee – Thiruda Thiruda Theendai mei Theendai – En Swasakatre Thigu Thigu – Aa Aah Thillana Thillana – Muthu Thoda Thoda – Indira Udhaya Udhaya – Udhaya Urvasi Urvasi – Kadhalan Uyire Uyire – Uyire Velli Malare Velli Malare – Jodi Vennila Vennila – Iruvar Vennilave Vennilave – Minsara Kanavu Yedo Yedo – Enakku 20 Unakku 18 -- regards, Vithur Whatever God wants to give, no one can deny; Whatever God wants to deny, no one can give. Be happy always

