Zac Efron and Vanessa Hudgens announced their split in December, but judging by their night out in Hollywood on Friday, they're as cozy as ever.

The pair arrived at SHG's Eden, a new see-and-be-seen nightclub, with pal Brittany Snow, but as the evening progressed, they only had eyes for each other.

A source tells TooFab of their arrival at the club, "Zac was dressed casually in a red flannel shirt and jeans and Vanessa was in a tight grey tube dress. They arrived with Brittany Snow, also in a tight tube dress."

But after the trio arrived, Efron, 23, and Hudgens, 22, "were inseparable throughout the night, dancing, drinking Belvedere vodka and canoodling."

In fact, adds the source, "Vanessa only broke from Zac's side to dance with Brittany on the couches at their table." And "Desperate Housewives" star Shawn Pyfrom also partied with the group.

Also at the club, which was lit up by lasers and Co2 canons, were Doug Reinhardt, Jesse McCartney,  Jesse Williams and Jamie Chung.

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