Hollywood gossip Moms want to know.

Lionel Richie's kids span 17 years: Lionel and daughters Nicole (26) and Sofia (9) attended ASCAP's 25th Annual Pop Music Awards together. This photo is perfect for National Siblings Day, which is today. Who knew?! Check out our celebrity siblings gallery below.

Beyonce is a bad babysitter? Little sister Solange said this about Beyonce watching her 3-year-old son, Daniel. "She's kept my son over the weekend. She'll call me like, 'How do you get this stroller out? And what about the car seat? I don't know how you do this!' And I'm like, 'People do it every day.'"

Ashlee Simpson engaged to rock star boyfriend, Pete Wentz! The two confirmed the news last night. And, of course, Proud Papa Joe Simpson had to comment to People, saying he's, "so excited to have Pete as part of (our) family." Or, in other words, now under his control.

Click on an image to view the National Siblings Day Gallery!