Pattinson, who recently ended his four-year-old relationship with actress Kristen Stewart, wants to enjoy his single status.
“Rob’s really keen to hang out with Harry, especially now he’s a single man. He wants to see One Direction perform as he admires what they’ve achieved as a top Britain band," dailystar.co.uk quoted a source as saying.
The actor wants the entire thing to be a secret as he does not want the crowds to go out of control.
“But he’s hoping to keep his appearance hush-hush. He’s using a secret back-door entrance so he can sneak in and keep a low profile. Rob knows he’ll be mobbed if the teenage 1D fans spot him," the source said.
“He’s hoping to go out for a few drinks with Harry after the gig," the source added.