But when asked about Zac specifically on the red carpet at Pure nightclub, Vanessa said...
"We're good," giving reporters the thumbs-up. Guess they really have remained friends.
Inside the club at Caesar's Palace, the birthday girl recieved a three-foot-tall red velvet cake before drawing the curtains at her VIP table for privacy.
"The girls were taking shots, drinking champagne, cocktails and Red Bull," a source says. "Vanessa took off her shoes, jumped on top of the furntiure and had a dance off with Ashley!"
According to an onlooker, she did take a breather when Mario's "Break Up" came on, but quickly got back up when the deejay played Jay-Z's "On to the Next One."
So clearly, Vanessa doesn't want to celebrate her split from Zac after five years of dating, but she's ready to move on to a new guy.
Either that, or she likes jamming to Jay-Z more than Mario. You decide!