Jon Bon Jovi's career has come full circle after he was asked to compose a track for heroes Al Pacino and Christopher Walken's new movie Stand Up Guys.

The rocker admits the two movie stars are among the people who first inspired him to become a rocker - and then an actor, and it feels good to be able to work with them at last.

He says, "They've been in my life from the first movies that I cared about."

And he now has a very special keepsake - a note from Pacino himself.

Bon Jovi adds, "To be able to write something for him and to get the note from him telling me how much he loved it... That's why I'm here today."