Great turning points in musical history

The current issue (June 2013) of Q magazine, has an interview with my heroes, Sparks. It includes the following snippet of modern musical history:

Question: Is it true that in 1974 you approached Brian May to be your touring guitarist?

Russell Mael: It’s absolutely true. We met with him and it was a period where I assume he wasn’t sure where Queen was headed. I remember something about their American tour having not lived up to their expectations. We met with Brian and proposed he join Sparks and for a short spell it was being bandied about. But he obviously decided to stick with Queen.

Wow. What could have been? What would have been?