Anna Paquin and Stephen Moyer

Anna Paquin and Stephen Moyer have welcomed twins into the world, a few weeks ahead of their due date. The couple, who met on the set of True Blood, were married in 2010. Stephen already has two children from previous relationships, Lilac, 10, and Billy, 12.

2012 has seen an incredible baby boom among celebrities, with newborns arriving for a host of A-listers since January. Click through to get the lowdown on which stars have welcomed new family members...