Darren Criss Mistaken For Co-star's Stalker

Darren Criss so admired his Glee co-star Amber Riley's performance of "Ain't No Way" that he would sit in the audience each night of the Glee spring concert series and weep as she sang. To blend in with the crowd, Criss, 24, would wear a hoodie and hunker down with the other non-celebs. Once, his disguise was a bit too real, and security guards mistook him for an obsessed fan.

After a particularly impressive performance, the incognito Criss went backstage to congratulate Riley on a job well done. "I went to go hug [Riley] backstage and made a beeline for her," Criss told reporters at a press conference for Glee the 3D Concert Movie. "The security guards were like ninjas. I got zipped," he said.

The misunderstanding was soon cleared up as Criss's true identity was revealed and everyone had a few laughs. "It was funny," Riley said. "We just cracked up, so did security." Criss added that the mishap did not stop him from donning the disguise and repeatedly watching Riley's performance. "And I cried every single time," he said.

Criss, who recently won the Teen Choice Award for Breakout Star in Television, has been added to cast of Glee as a season regular. His cover of Katy Perry's "Teenage Dream," which launched his character Blaine's storyline, is Glee's fastest selling debut single of all time.