(Cover) - EN Showbiz - Zac Efron and Vanessa Hudgens have been spotted canoodling at a Hollywood party, sparking reconciliation rumours.

The stars met while shooting High School Musical, and had been dating for around four years when they went their separate ways last month. No reason was given for the split, and it was thought both sides were finding it hard to deal with.

The pair attended the opening of Hollywood nightspot Eden together on Friday, and left onlookers wondering whether they have rekindled their romance. Vanessa looked stunning in a tight black dress, and the pair only had eyes for each other all evening.

They were inseparable all night, dancing, drinking vodka and canoodling, a source told the New York Post.

Zac, 23, and Vanessa, 22, arrived at the party with pal Brittany Snow, and wasted no time in showing off their moves. The pair headed straight for the dance floor, where they stunned other guests with their sexy routines.

Vanessa was bopping around with her arms up while Zac had his hands all over her, a source told People. Vanessa had a smile on from ear to ear and the two were inseparable after that.

After they tired of dancing, the twosome retired to a table where they sat chatting and smooching for the rest of the evening. (C) Cover Media