Jennifer Lopez shows off killer curves in bikini .

Jennifer Lopez isproving that age is just a number

The "Let’s Get Loud" singer shared a glimpse intoher 54th birthday celebration— including her barely-there birthday swimsuit — in the July 31 edition of her "On The JLo" newsletter Monday.

In the snaps, Lopez put her killer curves on display while wearing a blackValentino bikini($980) with a green-and-white panther pattern.

Before stripping down into the sexy two-piece, she rocked a sheer blackValentino kaftan($5,900) with the same panther pattern as her bikini.

She paired the low-rise swimsuit with a chunky diamond choker, a long gold chain with a key pendant on the end,enormous gold earrings by Misho($226) and a black fedora — which she swapped for a tan hat while lounging in the water.

Jennifer Lopez stunned in a series of bikini-clad snaps for her 54th birthday.Instagram/Jlo

Lopez put her seemingly ageless figure on display in a panther-patterned bikini.

The birthday girl paired the low-rise swimwear with a black fedora.

In one of the photos, Lopez shared an up-close look at the patterned bikini — and her enviable abs — as she seemingly danced on the patio of her and husband Ben Affleck’snew $60 million Beverly Hills mansion.

According to the newsletter, the actor, 50, hosted the "Mediterranean chic" party, which was attended by their "closest family and friends."