McCartney trying to keep dignity during divorce

Paul McCartney says he's "surprisingly OK" despite his difficult divorce from his second wife, Heather Mills.

"It's very tough, you know, going through a separation," McCartney said in an interview that aired Thursday on ABC News' "Good Morning America." "But I'm just trying to keep my dignity, trying to just move forward and not talk about it in interviews, really."

McCartney and Mills, a 39-year-old former model and activist who recently appeared as a contestant on ABC's "Dancing With the Stars," are in divorce proceedings. They have a 3-year-old daughter, Beatrice.