The unlikely trio features on Raghav's track Until The Sun Comes Up, on which actor Bachchan shows off his rapping skills.
The release is also designed to raise awareness about the Solar Aid initiative to highlight the lack of electricity in Africa.
In a press release about the track, Raghav writes, "I hope people will look years from now at this song being a singular moment when east and west collaborated in a way that has a true global musical impact. And performing it with Nelly (who is a legend) and Abhishek (who is the most talented human I've ever met) makes this song even more special to me."
Nelly adds: "Any collaboration is about the artist and the song, in this case I believe in both, but also the social awareness Raghav is trying to bring to an under reported issue. I'm very happy to be part of this."
The Hot in Herre hitmaker isn't the first mainstream artist to make moves into Bollywood - Snoop Dogg, Kylie Minogue, Akon and Nicole Scherzinger have all recorded songs for Bollywood movies with leading Indian stars.
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