The song, titled 'Spinnin' For 2012', is a reworked version of a Speech Debelle original, with both Stryder and Bromfield rewriting the track's lyrics.
'Spinnin' For 2012' will act as the official soundtrack for the 8,000-mile journey over 70 days, which aims to take the Olympic torch within one hour of 95% of the UK's population. It will also be featured in the London 2012 Torchbearer nomination film.
Joking about being unsuccessful in obtaining Olympic 2012 tickets, Stryder told The Sun: "I didn't get any tickets in the end, like loads of other people. I tried but had no luck. I'm hoping that this song will get us a few, though."
He added: "I must be in with a chance, surely. I'm desperate to see some of the events.
It will be massive. I'd love to watch the men's 100m final."
Stryder recently revealed that he is considering releasing an album with N-Dubz star Dappy, while Bromfield will release her new album Good For The Soul on July 4.
Watch the music video for Tinchy Stryder's recent single 'Spaceship', which features Dappy, below: