Tamil star Dhanush's song Kolaveri Di, which has become a rage with over 10 million hits on YouTube, will now reportedly have his father-in-law Rajinikanth's cameo in the music video.The first time Rajini heard the song, he couldn't stop laughing. But now he's very happy with the response the song has received."Rajnikanth has loved Kolaveri and is clearly very happy and proud of the recognition the song is receiving. Now Aishwarya and Dhanush have requested him to do a special appearance in the film and most likely he will be doing it," a source told Mid Day."He is still resting in Chennai and these days he is highly preoccupied with his grandkids. They happily dance to Kolaveri too," added the source."The language in Kolaveri is like no other song, and it has somehow become the USP. We are shooting three different videos for the song, sometime in December. We're looking at videos that capture the mood of the song right now," Dhanush told the tabloid. When asked about Rajini being part of the video, he told the tabloid: "We'd only love it if he's part of everything we do."Now if superstar Rajini becomes a part of the video, we wonder how many hits the song will garner!