You're not seeing double — that's just Zac Efron's brother!
The High School Musical star reminded fans he has a hot younger sibling on Instagram — sharing a photo with his little bro Dylan on the social media platform.
"Fishing with my bro @dylanefron and the boys. Life's good," the 29-year-old actor captioned the pic of the duo in upstate New York on a guys' trip.
Dylan, 25, also shared a photo from the outing, writing, "Road trip! Upstate New York in search of [fishing emoji].
Fans, of course, were quick to comment on the photogenic brothers.
"@zacefron is ur brother single?" one follower commented, before another added, "I'd take both."
Zac has always been close to his brother. Last year, he congratulated his sibling for qualifying for the Boston marathon on social media.
"That happy guy in the middle. That’s my BROSKI! Congrats on qualifying for Boston in the #ChicagoMarathon. You stud muffin," he wrote.
He also revealed to Jimmy Kimmel that they are also living together.
"It's good. My little brother is a good roommate," he said. "He keeps an eye on the house for me and eats all my groceries so I come home to an empty house."
Unlike his older brother, Dylan does not want to be an actor.
"He's actually producing," Zac added. "He's doing a lot of writing, scripts. He's actually made a few movies."
Two Efrons are always better than one! For more hot celebrity siblings then and now, click through the gallery below!