Zac Efron flexes his ripped muscles at Independence Day beach party in Malibu

Zac Efron flexes his ripped muscles at Independence Day beach party in Malibu

Ripped Zac Efron flexes his muscles as he hits the beach for Independence Day party

1:28 AM on 7th July 2011

Ripped: Zac Efron flexes his muscles and delights armies of female fans as he shows off his buff body on the beach on Monday

Ripped: Zac Efron flexes his muscles and delights armies of female fans as he shows off his buff body on the beach on Monday

Hanging with friends: Zac celebrated Independence Day with a group of friends

Hanging with friends: Zac celebrated Independence Day with a group of friends

Chatting: Zac spent a lot of time talking to a young woman wearing a pretty maxi skirt

Chatting: Zac spent a lot of time talking to a young woman wearing a pretty maxi skirt

Shopping time: Zac was spotted yesterday out shopping in Studio City with friends including Rumer Willis

Shopping time: Zac was spotted yesterday out shopping in Studio City with friends including Rumer Willis

Casual style: Zac wore a T-shirt and pair of khaki shorts as he and his friends shopping in stores including Urban Outfitters

Casual style: Zac wore a T-shirt and pair of khaki shorts as he and his friends shopping in stores including Urban Outfitters

Buff: Zac had to bulk up to play a marine in the upcoming movie The Lucky One

Buff: Zac had to bulk up to play a marine in the upcoming movie The Lucky One

No romance here: Zac was seen messing around with Ashley Tisdale over the weekend but the actress has denied there is anything going on

No romance here: Zac was seen messing around with Ashley Tisdale over the weekend but the actress has denied there is anything going on