The multi-talented father-son duo have sung two different songs for an upcoming film titled Doo. This film is being directed by debutant Shriram who has been the assistant director for Thirumurugan. The film stars Mundhinam Parthene fame Sanjay and has yesteryear actress Sumithra's younger daughter Nakshatra making her debut as the heroine.

T Rajendar has rendered a snazzy song that goes like this - Dhum vitru da machan... Illa saraka vitru da machan... Illa love panrathu vitru da machaan. TR is famous for his 'dapaankuthu' and peppy numbers and he is all set to do an encore with this number. Silambarasan has sung 'Oru Paarvaiyil Poothadhu Kanne', a melody song. The film's last leg of shooting is on and will released in the month of April.