Sometimes grandparents get so excited that they can't help spilling the beans.

Lionel Richie has revealed that daughter Nicole and singer Joel Madden are expecting a baby boy on New Year's Eve. The couple, who are planning to tie the knot next year, have so far declined to reveal the baby's gender.  

But Richie told OK! magazine: "Nicole is having a boy. She even has a few names picked out."

Richie and Madden held a Wizard of Oz-themed baby shower last week, donating the presents to 100 needy pregnant women.