David Letterman will be a dad. He announces on the ''Late Show'' that girlfriend Regina Lasko is pregnant by Gary Susman

If David Letterman seems a little less cranky and more reflective of late, it's because he's been sitting on big news. ''I have something to tell you all,'' he told the ''Late Show'' audience at Thursday's taping of Friday's episode, the New York Daily News reports. "I'm going to be a father.'' He joked that girlfriend Regina Lasko is so big, ''there's some tunnels we can't get through any more'' and that, at 56, he's old enough to be the baby's father and grandfather. Said bandleader Paul Shaffer, ''If this doesn't soften you up, nothing will.''

The child would be the first for Letterman, who was previously married for seven years to college sweetheart Michelle Cook. He's been dating Lasko, 43, for a decade, since she came to work for him at ''Late Show.'' (In an aside to Lasko's parents, he said that a wedding was under discussion.) He did not mention the baby's sex or due date, but a show insider tells the New York Post that Lasko is indeed ''huge, like six or seven months.'' Of the host, a show source told the Post: ''He's nervous, but he's psyched.''

Letterman's first Friday guest, Cuba Gooding Jr., gave Dave a congratulatory cigar and told him, ''Life is over as you know it.'' He added, ''I'm serious, man, I got two boys. If you have a girl, maybe good luck to you.''
*source http://www.ew.com/ew/report/0,6115,485328~10~0~,00.html