Stella McCartney is ahead of the curve when it comes to designing fashions and her family. She and husband, Alasdhair Willis welcomed baby, son Beckett Robert Lee, to the world on Tuesday in London.

The lil guy is the couple's third child in three years. He joins brother, Miller Alasdhair James, 2 and sister, Bailey Linda Olwyn, 1. Brand new Beckett, Miller and Bailey are the grandchildren of former Beatles, legend Paul McCartney.

Source