Irina Shayk has us shook with how many hot shots she’s shared over the years … and lucky for you, we’ve culled them together in one place. So dive into her best pics and test how Shayk-y your Irina knowledge is in honor of her 40th birthday!

The Russian model may be entering a new decade, but she looks like she’s aging backwards, as these bikini shots show.

Just take a peek at this little strappy black two-piece she wore poolside while striking a seductive runway pose.

And she looked absolutely heavenly in this angelic white one-piece with her hair blowing in the wind.

For a closer look at Irina’s hottest shots, be sure to check out our gallery above … and click below for some IS trivia!