These young pals are forever connected.

Olivia Rodrigo and BFF Iris Apatow teamed up with TikTok stars Charli D’Amelio and Avani Gregg to cement their friendship with matching tattoos.

The foursome chose two designs for their pinky fingers: D’Amelio, 17, and Gregg, 19, got smiley faces while Apatow, 19, and Rodrigo, 19, went with hearts.

It appears to be the first tattoo for all four teens, who showed off their ink in a video posted to D’Amelio’s TikTok Wednesday.

Rodrigo celebrated her birthday last month with Apatow in attendance at Shorebar in Santa Monica, Calif.

It’s been a busy few weeks for the “Good 4 U” singer, as she accepted the Billboard Woman of the Year Award earlier this month and won three iHeartRadio Music Awards, including Female Artist of the Year, Tuesday night.

Olivia Rodrigo, Iris Apatow, Charli D'Amelio and Avani Gregg showing their matching pinky tattoos.
Rodrigo and Apatow coordinated with heart ink while TikTokers D’Amelio and Gregg got smiley faces. charlidamelio/TikTok

As for Apatow, daughter of actress Leslie Mann and director Judd Apatow, she is linked to another famous Hollywood offspring: Kate Hudson’s son Ryder Robinson. The two went Instagram-official on Valentine’s Day with a sweet kissing selfie.

The famous moms gave their kids’ relationship the stamp of approval, with Hudson, 42, and Mann, 49, commenting “Sweets” and heart emojis, respectively.