United Kingdom, July 15 -- Rihanna is raising her children to be "outside and in nature", in tribute to her late father.

The 37-year-old singer - who has sons RZA, three, and Riot, 23 months, with her partner A$AP Rocky, and they have another child on the way - lost her dad, Ronald Fenty, on May 30 aged 70, but she has thanked her late parent for "preparing" her to have two sons.

Speaking to Entertainment Tonight at The Smurfs premiere in Los Angeles, she said: "I've always dreamed of what type of grandfather he would be to them, because of the favourite parts of my dad.

"It prepared me for having two boys, really.

"The adventurous side of me, the outside side of me, the daredevil - it's how I want to raise them.

"I want them to be o...