MR. CLOONEY

Gorgeous George turns the big 5-6 on 5/6! This year will be twice as special, with twins on the way for Clooney and his wife, international human rights attorney Amal. These other late-in-life dads are loving life with kids.

JEFF GOLDBLUM, 64

The actor and his wife, Emilie Livingston, welcomed a second son this month. They had their first, Charlie Ocean, when Goldblum was 62.

STEVE MARTIN, 71

Martin and his wife, Anne Stringfield, welcomed a daughter (his first child) in 2012 when he was 67.