LONDON (AP) -- Former "American Idol" singer Adam Lambert is joining landmark rock band Queen for one concert this summer, at Sonisphere 2012.
Queen's Brian May and Roger Taylor confirmed today that Lambert will perform vocals for the band's headline set on the second day of the Sonisphere 2012 rock festival. The concert takes place July 7 at Knebworth Park in Stevenage, north of London.
Lambert, 30, has sung with Queen before. In 2009, he performed "We Are the Champions" on "Idol" and then last November he sang an eight-minute set at the MTV Europe Awards.