I went to see the Queen Extravaganza show here in San Diego this past Sunday.
Marc Martel was fantastic.
There were 3 other lead vocalists (including a woman), and each took turns singing lead (i.e. being Freddie Mercury) along with Marc.
But Marc by by far was the best Freddie Mercury I could ever have imagined.
Marc's singing was practically indistinguishable from the real Freddie. And to add to this, Marc even somewhat resembles Freddie, without even trying. The other two male leads hardly resembled Freddie at all. One looked absolutely nothing like him.
The show itself was very impressive, but it was not at all like a Queen show. They had two guitarists each doing Brian May at the same time, an additional keyboardist, multiple lead vocalists who sometimes sang lead, and at other times sang backing vocals. The show's goal was to recreate Queen's music live, something which Queen themselves couldn't always do on stage, because of the many overdubs needed, especially on songs like Bohemian Rhapsody. So with all the additional vocalists singing together, they were able to recreate the high vocal middle part of Bohemian Rhapsody (i.e. Galileo ... Galileo ... magnifico ... etc.) and sound just like the original recording.
The Extravaganza performers did not dress the part of Queen. Their outfits were relatively average looking clothes, and not the tight bright colored clothes like Freddie often wore. No spandex or leather pants.
I also read that Adam Lambert is still scheduled to perform with Queen this summer for several shows in Europe, so will be waiting to see how that goes. Supposedly it is an experiment ... maybe to see if Adam can become a permanent member?
I still feel Marc Martel would be a better choice for Queen after seeing him live. Adam is a great singer, but Marc is the most amazing Freddie Mercury lookalike/sound alike possibly on the entire planet.
Adam brings great stage presence, but Marc can sound like Freddie like nobody else.
Only downside of Marc, is he still doesn't have the commanding stage presence of Freddie, so that's one thing he would need to improve.
I think this photo of Marc says it all ...
http://marcmartelmusic.com/