Looks like the Pretty Little Liars have finally found “A”!

Okay, maybe not, but they and Rosewood (the fictional place in the show) are set to welcome Adam Lambert later in the show’s season. ABC Family confirms that the fan-fave American Idol alum is set to appear on the show’s Halloween episode, to air sometime in October. Marlene King, the executive producer of Pretty Little Liars, said:

When we heard Adam was a fan of the show, we knew that he would be a perfect fit for our Halloween episode. He’s oh so Rosewood!

The singer, who will be appearing as himself, will meet the Liars when he performs at a pumpkin-themed party that they will attend. Adam revealed the news to his fans via Twitter, saying:

Yup— imma be a Pretty Little Liar!

Shay Mitchell, who plays Emily in the show, replied to Lambert’s tweet:

Welcome to Rosewood!

Lambert reportedly will be singing two songs in the show. Both are from his new album, Tresspassing, which is out in stores now.

Pretty Little Liars fans are surely excited about this new “A”!

Photo: Wikipedia