Sports Illustrated Features 56-Year-Old Model and Plus-Size Siren Ashley Graham

Nicola Griffin joined Ashley Graham for the magazine's coveted swimsuit issue.

The always popular Sports Illustrated swimsuit issue hits newsstands later this month and INSIDE EDITION got an exclusive peek at this year's models.

Read: Meet The Ageless Grannies With Jaw-Dropping Bikini Bodies

This year's issue includes plus-sized models Ashley Graham and Philomena Kwao.

Kwao, 26, told IE: “It's surreal. I still can’t believe it.” She also admitted she has never worn a bikini before and being photographed for the magazine was the first time she has ever put on one.

Graham, 28, proudly posted the news on Instagram.

Nicola Griffin, 56, is the oldest model ever featured in the swimsuit issue and looks amazing in a sparkling gold bikini.

Read: Mom Who Looks Just Like Her Twin Daughters: People Can't Believe I'm Their Mother

The magazine is running campaigns called “Swimsuits For All” and #SwimSexy, encouraging women to wear bikinis at the beach.

Watch: Plus-Size Women Proudly Wear Bikinis as Part of #Fatkini Trend