Many moons ago, Zac Efron uploaded this, and the internet imploded.
YUP, that was the day we discovered the beauty of genes, and that Zac had an equally as hot brother - Dylan.
Anyway, back to reality... over the weekend Zac supported his bro during an Ironman comp, and because he knows what the people want, he captured the best part on video.
Just when you thought Zac was the athletic one, you hear about what Dylan actually had to do... swim 3.8kms, bike 180kms, and ran a marathon of 42kms...
Bae came 12th place, and we're so proud. WHAT a family.