Zac Efron: Ripped Tide

9/5/2007 6:11 PM PDT
UPDATE: TMZ readers know their Efron! We've confirmed that these pics, while just released to TMZ today, are from April. We thought you'd appreciate them anyway! Please enjoy!

The heir to Matthew McConaughey's tan, shirtless throne has been found in the lean, hairless form of "High School Musical's" Zac Efron! Sing it!

While taking a dip in Hawaii, the bare chested 19-year-old showed off his wet, smooth, rippling abs. Yet another underage Hollywood star caught with a six pack!