Rocker Adam Lambert on Wednesday filled in as a guest judge at the weekly competition of So You Think You Can Drag.

Paige Turner's amateur drag competition takes place each Wednesday for seven weeks at New York City's New World Stages.

Lambert gracefully filled in at the last minute for Patina Miller, who accepted an eleventh hour invitation to appear on the Wendy Williams Show. Miller is best known for originating the role of disco diva hopeful Deloris Van Cartier in the Broadway production of Sister Act the Musical.

In a video posted by New York City gay glossy Next Magazine, Lambert is seen giving contestant Sister Mary Helen the lowest score out of the three judges. (The video is embedded in the right panel of this page.)

Lambert also made a cameo appearance last year on RuPaul's Drag Race, which airs on all-gay cabler Logo, and he joined Raja as he celebrated being crowned season 3 winner.

America's newest drag diva is also Lambert's make-up artist. At the start of the season, Lambert predicted Raja would be the queen to beat.

“You are the top drag queen!” he told Raja. “Those bitches better watch out.”