says he won't be imitating Freddie Mercury
when he fronts Queen
Instead, he will stamp his own sound on the performance - and isn't worried about a backlash if fans don't like it.
"The way I look at it is I'm not trying to imitate or outdo him or compete in any way,
" he told NME
. "That's not even in my mind at all. I think it's really an honor to be asked to sing the music that he and the band wrote and get up there and put on a good show.
"If people are too busy trying to compare, they're not going to enjoy the music.
He also tried to distance himself from being an official frontman, insisting the Sonisphere performance is a one-off.
"One of the things [people said] was, 'He's gonna be the permanent frontman of Queen.' And although that would be a beautiful experience, the tricky thing this year for me is I also have my album coming out ... and that's gonna take a lot of work and time and energy.
"It's really a one-off experience with the band, and I'm really excited for it. But I'm not joining the band and touring with them.
Regardless of his comments, we wouldn't be surprised to see Queen taking Lambert on a full tour if the Sonisphere show goes well.
It would be sad to see Lambert only using the show to promote his solo career, but the fan reaction to Lambert's performance will be be interesting none the less.