Robert Pattinson was seen partying in Toronto without girlfriend and 'Twilight' co-star Kristen Stewart, according to

The 25-year-old star, who is in Toronto filming 'Cosmopolis,' was seen at the trendy Crown Bar and Lounge on Friday night.

"He was there laughing and drinking with some twenty-somethings who worked on [Cosmopolis] with him," a witness told Hollywood Life. "He looked like he was having a great time and didn't have a care in the world!"

Kristen Stewart has also been seen on the town without Rob. She was recently spotted partying with Sienna Miller in London.

But not to worry, the 'Twilight' duo seemed very much in love at last week's MTV Movie Awards.