United Kingdom, Oct. 9 -- Aubrey Plaza learned how to "have fun and move forward" from her grandmother

The 41-year-old star - whose estranged husband Jeff Baena took his own life in January this year aged 47 - has reflected on the advice she received from her grandma about dealing with tough times in life, and revealed the inspiration behind her new children's book Luna And The Witch Throw A Halloween Party.

Without mentioning her late husband by name, Aubrey told the Today show: "She taught me from a very young age that life is a party and no matter what happens, we have to have fun and move forward, and so I think this book was inspired by that.

"I think on both sides of my family, I have a lot of witchy women that raised me, so this...