WATCH: How Adam Lambert Went From American Idol Runner-Up To Queen Frontman

Documentary to air tonight

An ABC documentary on how Adam Lambert has gone from American Idol Runner-Up to Queen Frontman will air tonight.

It started with what was thought to be a one-off appearance with the band when he competed on American Idol in 2009.

Here’s a sneak preview:

YouTube / @Good Morning America

Queen + Adam Lambert will tour North America from July 10 until Aug. 23; the road trip follows the success of the Freddy Mercury biopic Bohemian Rhapsody. Lambert returned to American Idol last night to mentor contestants through the performance of Queen music.