Julie Andrews gives rare update on life at 90

Originally appeared on E! Online .

Julie Andrews is feeling practically perfect in every way.

After all, the "Mary Poppins" star — who had her 90th birthday on Oct. 1 — is celebrating the start of the new decade by continuing one of her favorite activities: publishing books with her daughter Emma Walton Hamilton , whom she shares with ex-husband Tony Walton . The mother and daughter duo recently reissued their 2010 book "The Great American Mousical" about a troupe of theater-loving mice, this time illustrated by Walton, himself a famed costume and production designer.

As Andrews told People in an interview published Oct. 27, she and Emma “just had such a ball writing it.”

For the "Sound of Music" actress — who has written 30 books with Emma, 62, over the past 25