Photo Flash: Adam Lambert Performs UK Concerts With QUEEN

Idol alum Adam Lambert is currently performing three UK concerts with Queen in London. The singer took to the stage at London's Hammersmith Apollo with Brian May and Roger Taylor to sing the band's biggest hits. Check out photos from below!

During Lambert's finale appearance on the 2009 season of American Idol, the singer performed 'We Are the Champions' with some of the surviving members of Queen. The singer also performed with the band at last year's MTV Europe Awards.

Lambert's latest album, 'Trespassing' reached No. 1 on the Billboard Top 200 albums and his second major label album. It follows "For Your Entertainment," released in 2009, which debuted and peaked at No. 3 with 198,000 sold in its first week. Lambert's theatre credits include the national tour and LA productions of WICKED, and THE TEN COMMANDMENTS.