​Bikini-clad Janet Gretkzy is the ‘hottest grandma’ in Paulina Gretzky’s Mother's Day photo

She may be a mother of five (and a grandmother of one!), but Janet Gretzky can rock a bikini with the best of them. Wayne Gretzky’s eldest daughter, Paulina Gretzky, celebrated Mother’s Day over the weekend by sharing a glamorous photo of her beautiful mom on Instagram.

Paulina – who is a new mom herself after giving birth to son Tatum in January – paid tribute to her gorgeous mama in the snap, which shows The Great One’s wife soaking up the sun in a black two-piece swimsuit.

CLICK ON THE IMAGE TO VIEW LARGERJanet Gretzy, 54, is one hot grandma

“Happy Mothers Day to hottest mama of 5 and grandma of 1!” she wrote in the caption.

The image prompted a flurry of impressed comments from fans, who expressed envy at the 54-year-old's flawless figure.

“Um what. 5 kids!! And here I am working out everyday to look like this grandma,” wrote one admirer.

“Grandma’s still got it!” enthused another.

Not to be outdone, the 26-year-old blond beauty followed up her Mother's Day post with her very own bikini photo on Monday (May 11). The model and singer bears a striking resemblance to mom in the stunning snap (good genes clearly run in the family!).

Like mother like daughter: Paulina and mom Janet know how to rock a bikini!

In addition to the bikini selfie, Paulina also shared a sweet photo of her and Tatum snuggling along with the following message:

“From the moment you came into this world I knew how much you needed me but never realized how much I needed you. Happy Mothers Day everyone!!! ❤”

Paulina Gretzky's year in Instagram photos

Paulina and her pro-golfer fiancé, Dustin Johnson, welcomed their first child in January. The NHL heiress described the life-changing moment as “the happiest day of our entire lives.”

The pair became engaged in July 2013, but have yet to set a wedding date – though rumour has it that they are contemplating autumn nuptials.

Paulina shared this sweet snap with baby Tatum for Mother's Day

HELLO! Canada magazine is available for your tablet and smartphone. Get HELLO! Canada, PEOPLE, Vanity Fair and over 100 more of the world’s best magazines for one low monthly price at Texture by Next Issue. CLICK HERE to sign up for a free trial.