Hollywood´s perfect couple Zac Effron and Vanessa Hudgens were caught partying hard this Tuesday in Los Angeles. The couple gathered some friend do celebrate Zac´s cover for North American “Details” magazine – seen here. The two drank shot after shot with pal Dan Peres, head publisher of the magazine. It was a long night as Zac invited evrybody back to his home to continue the celebration. Madness!