Adam Lambert kicked off his long-awaited mini-tour by reuniting with Queen last night, serving as frontman for the band at Independence Square in Kiev, Ukraine.

Lambert was beyond excited telling ABC News:

“For me, personally, I think I’m gonna look back on this in years to come and kind of think, ‘Wow, what a treat. What an honor to be able to be asked to sing with legends.’ Their music is iconic and Freddie Mercury, for me, is obviously one the the very great performers in history and a definite idol for me.”

They performed a two-hour set in the Euro 2012 fan zone as part of joint concert with Elton John to benefit the Elena Pinchuk ANTI AIDS Foundation.

Adam first performed with Queen as a contestant on American Idol.

Amazing!

Another video after the jump!