Following his break up with Kristen Stewart Robert Pattinson seems to be enjoying the single life. The actor has been spending his free time with his good friend Katy Perry, so much time that rumors are sparking that the two are more than just friends.

The two single celebrities have been spending loads of time together and recently attended a Bjork concert on Saturday night.

The pair arrived and left separately but while inside, they enjoyed the show together. To be honest the "friends" are bringing suspicion upon themselves. If you know you are simply friends with someone, why feel the need to go to great lengths in order not to be seen together.

If you don't have anything to hide, why are you hiding Robert and Katy? It was reported that the two met up "discreetly" and made their way into the concert together.

[To see photos of Robert Pattinson and Katy Perry at the concert click Here]

According to an X17 Online photographer, the pair arrived separately at 7:30pm but met up before going inside.

The photographer on the scene said, "They had planned to meet up before going inside to the concert.

"They must have been coordination on their cells phones because they pulled up next to each other in the parking lot, rolled down the windows and were talking.

"They parked and then met at the door and went inside together."

The photographer reported that they stayed together throughout the show but tried not to be seen together when they left.

"Katy came out the back door by herself, trying not to be noticed. She was looking around to see if there were any photographers. She definitely didn't want to be shot with Rob."

Do you think Robert Pattinson and Katy Perry have something to hide? Leave us a comment below.

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