It seems that Rob and Hugh Jackman joined together for a little karaoke session while promoting their films in Tokyo!

“I just got word that Pattinson and Jackman engaged in some karaoke crooning together this week at a bar in Tokyo.

The two have been in Japan on business. Pattinson touched down on Tuesday to promote Twilight, while Jackman and Nicole Kidman attended last night’s premiere of Australia.

Says a source, “They went after doing press for their films.”

You can read more details at Just Jared.