BABY ON BOARD

Vince Vaughn, 43, and his wife, Kyla Weber, are expecting their second child. During an appearance on the April 26 taping of The Ellen DeGeneres Show, the costar of the upcoming comedy The Internship revealed the happy news. "This is the first time I've said anything," he said. "We're very excited ... [She's due] Aug. 5." The couple married in 2010 and have a 2-year-old daughter named Locklyn Kyla. • Country singer Dierks Bentley is going to be a dad for the third time. The heartthrob, 38, announced on Twitter April 24 that he and his wife, Cassidy, 37, will be expanding their brood this fall by welcoming a sibling for big sisters Evalyn, 4, and Jordan, 2.

HONORED

Oscar winner Ben Affleck, 40, will receive an honorary doctorate in fine arts from Brown University on May 26 as part of the school's commencement ceremony. It will be the first degree for the Argo director and actor, who spent a semester at the University of Vermont in 1990 and later transferred to Occidental College in L.A. but dropped out after three years studying literature.

IN TREATMENT

Catherine Zeta-Jones (inset), 43, is back in treatment for her bipolar II disorder, which can cause high and low mood swings and depression. The actress checked herself into a health care facility because "she is committed to periodic care in order to manage her health in an optimum manner," her rep Cece Yorke tells PEOPLE. A friend adds, "There was no big problem. This was a good time to do it. She is in between projects. This has always been part of the plan." And her husband of 12 years, Michael Douglas, 68, "couldn't be more supportive," says the friend.

ANNOUNCEMENT

NBA basketball player Jason Collins made sports history on April 29 by becoming the first openly gay male athlete still actively playing in any professional team sport in America. Collins, a free agent who most recently played for the Washington Wizards, came out in the pages of SPORTS ILLUSTRATED by writing a first-person essay. "I'm a 34-year-old NBA center. I'm black. And I'm gay," he wrote, earning a supportive call from President Obama.

BIRTH

Unforgettable star Poppy Montgomery, 40, and her boyfriend, Microsoft executive Shawn Sanford, 42, welcomed a baby girl, Violet Grace Devereux Sanford, on April 22. She weighed in at 6 lbs. 12 oz. "We are overjoyed with the arrival of our beautiful angel and filled with gratitude that she is thriving," Montgomery told PEOPLE. Violet joins big brother Jackson, 5, Montgomery's son from a previous relationship.