Twilight hunk Rob Pattinson and pop princess Katy Perry got up close and personal Wednesday night at Dimples Supper Club in Burbank California — and RadarOnline.com was there!

That’s right — we were inside the karaoke bar and can exclusively report that the two superstars looked to be more than just good friends.

We spied the two A-listers at the bar with a big group celebrating a friends’ birthday, but at certain times in the evening, it appeared Rob and Katy only had eyes for each other. We observed them sitting face-to-face, touching foreheads and acting very flirty with each other. They were both giggling and Katy looked positively giddy!A Dimples’ staffer tells RadarOnline.com exclusively that in 2008, Rob and Katy visited the karaoke dive together. “She brought him here before. Every time she comes he seems to follow.”

But Rob didn’t follow Katy onto the karaoke stage. She sang a Christmas song, but didn’t sound great, but it wasn’t her fault — the speakers were terrible in the bar, but she definitely looked sexy. She had on black skin tight pants with the sides cut out, Rob was getting an eyeful and he loved it!

For the last song of the night, Katy and her girlfriends took to the stage. The DJ played Pink’s So What and apparently Katy isn’t a fan! She started shouting, ‘Wrong song! No! We don’t like Pink.’ But the DJ didn’t care and eventually Katy gave up and she and her friends sang along.

Rob — who was knocking back whiskey and cola all night — appeared to be feeling no pain. His eyes were completely bloodshot and he was stumbling a little as they left the bar. It is a good thing he didn’t try to get up on-stage or he may have fallen off!

Eventually Rob — who was smoking like a chimney — and Katy made it to the parking lot with their friends in tow and hopped into Katy’s Audi coupe.3

Source: Radar Online