So, it's on.

Floyd Mayweather Jr v Oscar de la Hoya.
Pretty Boy v Golden Boy.
The best v the best known.

It's probably the biggest non-heavyweight bout since Marvin Hagler stepped into a ring with a man called Sugar Ray and certainly the biggest since Oscar lost a majority decision to Felix Trinidad in 1999.

"Done deal, baby! Done deal," a euphoric De la Hoya told ESPN on Monday.

His excitement is shared by millions of fight fans around the world.

Now, I'm not convinced "Pretty v Golden" will be an even contest because I've been awestruck watching footage of Mayweather train recently and I can't agree with Ricky Hatton's assessment of the 29-year-old's latest bouts.

"They carried him to the ring dressed as Russell Crowe and he ended up fighting like Sheryl Crow," Hatton told BBC Sport.

But make no mistake, this is box office boxing at its best. The build-up will be long and most likely amusing.

Las Vegas will roll out enough red carpet to pave the road to Hollywood. And the stars will be out in force.

Throw in the curious fact that Floyd Mayweather Sr trains De la Hoya, and the promoters are on a sure-fire winner.

If pressed on the result, I'll play safe with a comfortable points win for "Pretty". But let's not completely rule out a "Golden" lining for 33-year-old Oscar. He'll be at his best weight (light middle) and Floyd will be moving up again.

In Vegas, as in Hollywood, fairytales do happen