'Devasangeetham' ('Guru' - 1997), 'Aruna Kirana Deepam' ('Guru' - 1997), 'Kaithapoo Manamenthe' (Sneham - 1998), 'Manassil Mithuna Mazha' (Nandanam - 2002) and 'Vennakkalil Ninne Kothi' (Pattalam - 2003) are some of the most memorable songs sung by Thilak.