Robert Pattinson & Kristen Stewart ‘Happy & Relaxed’ at Katy Perry Concert (PHOTOS)

By: Taryn Ryder / March 27, 2012

Robsten in Paris!
Kristen and Rob go out in the city of love
Date night part two for Robert Pattinson and Kristen Stewart! After attending Marcus Foster’s show at Hotel Cafe in Hollywood on Saturday, Rob and Kristen were back again Monday night, this time catching Katy Perry‘s intimate performance. 

A source in attendance tells Celebuzz the couple looked “happy and relaxed” while out with a group of friends that included Katy’s BFF, Raising Hope actress Shannon Woodward, the ex-girlfriend of Rob’s good friend Andrew Garfield

“They hung with a group back near the bar, and flew under the radar for the most part,” adds the source. “They looked like they were having fun. I saw them laughing a lot.”

Kristen kept it casual in jeans, a gray tee-shirt and hoodie plus rocked her boyfriend’s hat. Rob, still scruffy, had dark pants and a navy blue hoodie over another baseball cap.

The couple ducked out together before Perry wrapped. 

Saturday, Pattinson and Stewart packed on the PDA a bit more. Said a Celebuzz insider:

I saw them quickly sneak a few kisses. Kristen was kind of in front of Rob, singing along at times. It was cute how he was looking on at her! They also held hands when they went to the backstage part.

Check out Pattinson and Stewart together in the teaser for The Twilight Saga: Breaking Dawn Pt. 2 right here: