Jennifer Lopez and Alex Rodriguez may have just gone public with their relationship, but they've decided it's never too soon to bring their families together.

The pop icon and the baseball legend headed to the Dominican Republic over Easter weekend for a concert Lopez performed on the Caribbean island, and both stars brought their adorable kids -- who happened to look like siblings.

WATCH: Jennifer Lopez Holds Hands With Alex Rodriguez on Dinner Date, Wears 'Blind for Love' T-Shirt

Lopez's 9-year-old little girl, Emme, and Rodriguez's 12-year-old daughter, Natasha, became fast friends while spending time together on the island, and fans couldn't help but point out that the two are total lookalikes.

Lopez is also the mother of a 9-year-old son, Max, Emme's twin brother. The singer shares her kids with ex-husband Marc Anthony, whom she performed with at her concert in the DR.

Rodriguez shares Natasha and her 8-year-old sister, Ella, with his ex-wife, Cynthia Scurtis.

PHOTOS: Celebs Share Pics of Their Cute Kids

While Lopez and her new man spent a lot of time with their cute kids, they also made sure to get away for some quality time together. The pair got down at the after party following her show, and the former Yankees slugger proved he could keep up with his ladylove on the dance floor. Check out the video below to see more.

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