Earlier this month it was confirmed that Adam Lambert was set to film a cameo for an upcoming episode of Pretty Little Liars and now one of the show's cast members has teased details of his role.

Speaking at the Staples for Students Teen Choice Awards after party at The Globe Theater in Universal City yesterday (July 22), Brendan Robinson (who plays the character of Lucas, pictured left) explained that the 'Never Close Our Eyes' hitmaker starts filming today:

"We’re in the middle of filming our Halloween episode right now. Adam Lambert is guest starring. He starts tomorrow. He will be on set with us and it’s going to be a scary, scary episode."

"I’m not saying that Adam Lambert is scary though. That’s not what I’m saying. He’s playing himself so he’s not like A or something."

When asked about the episode's storyline, Robinson mentioned that his own character appears in some of the scenes although he remained tight-lipped about the nature of Lambert's participation:

"Lucas will be in the Halloween episode but I cannot say whether or not he will be involved with Adam Lambert in any capacity. I guess you’ll have to watch and find out."