Former American Idol runner-up Clay Aiken is throwing major shade at this season's contestants.

The out singer and failed congressional candidate slammed ABC's revamped version of the show for being too nice to competitors, calling it a "vacation Bible school talent show" instead of a cutthroat reality competition.

In a Huffington Post op-ed , he said drag performer Ada Vox, who made it into the Top 10, "wasn't the best singer. Period."

"Someone needs to be real here," Aiken wrote. "Ada Vox wasn’t voted off because she is a drag queen and she wasn’t voted off because Adam Sanders (her alter ego) is a gay man. She was voted off because she was not the best voice on the show... This is a competition about singing. And Vox, entertaining performer though she doubtless is, was not the best singer."

On Twitter, Aiken also dragged contestant Catie Turner for flubbing the lyrics to The Bangles' "Manic Monday": "When I was on American Idol, I slightly flubbed some lyrics. Nowhere near this noticeable—and even Paula gave me hell. This girl gets a therapy session?!... What happened to the show we loved?"

The series just isn't up to snuff, says Aiken: "Remember back [in] 2002-2003, when Idol was a high-stakes singing competition?... Why's it now totally without critique and essentially just a Vacation Bible School talent show?"

Vox was quick to clap back in defense of Turner: "There’s no point in attacking an 18-year-old girl because you’re bitter about your fuck up," she tweeted. "Stop trying to stay relevant by riding the coattails of a show that you couldn’t win, either."

This isn't the first time Aiken has ruffled feathers: Last summer, he received major flack for defending Donald Trump, a misstep he's since apologized for.