What's better than classic rock? Wait... don't answer yet. What's better than one-hit wonders? Wait... don't answer that yet either. Because with their powers combined, the only true response is ...

After all, why mess around with easily scratched vinyl and other physical media when you can access music on your phone and keep your home free of clutter? For other classic rock fans, that just w ...

We take a look at some of the best rock 'n' roll collaborations where the guest artist ended up stealing the whole show.