The Guns N' Roses star asked Sir Elton if he could re-record his 1972 song to honour stuntman Eddie Braun's Evel Knievel-inspired "rocket launch", which is scheduled to take place next month (Sep16).

Braun will attempt to cross the mile-wide Snake River in Idaho, using a rocket, just like Evel back in September, 1974. Knievel and his specially-engineered rocket motorcycle failed when the daredevil's parachute malfunctioned and opened on take-off, and the stuntman narrowly escaped the disastrous feat with his life.

Stunt fan Slash and his band have reinterpreted the song as the theme music for Braun's Kickstarter project after Sir Elton gave the guitar great special permission to record the track.

"I approached the rock icon Slash, who I knew to be an Evel Knievel fan, and asked if he would be interested in being involved with my rocket project," Braun said. "He gave us the most awesome gift we could ever dream... a theme song!

"Slash featuring Myles Kennedy and the Conspirators got permission from Sir Elton John to re-record his 1972 hit song Rocket Man specifically for our project."

Anyone who donates cash to Braun's Kickstarter project will get a copy of the track.

"I'm so honoured to have been given the most epic theme song, by the most epic guitarist of all time!" Braun adds.

The daredevil will live-stream his jump attempt on 17 September (16) to anyone who donates $10 (£7.50) to the cause.