Watch Zac Efron Get Punk'd

His new movie may be called The Lucky One, but when squeaky clean Zac Efron has a scrape with Johnny Law, it's all captured on tape -- and it's not pretty. Lucky for him, he's just being Punk'd by good friend Hayden Panettiereā€¦ Zac Efron's Star-Studded Saturday "Oh my god, this is how it all ends," Zac mutters to himself as his cuffed friend puts up a fight with the cops and the former High School Musical star is forced to explain himself. See, it all started with a lady who tossed a bag of dog