So was it a date? Are the young stars really more than friends?
Read on to find out what we caught them doing...
Efron and Willis arrived at the club together around 1 am. Neither were seen drinking, but that didn't stop them from having a good time and letting loose on the dance floor. While the two were caught dancing together, we hear there was no dirty dancing or any other signs of romance going on.
"There wasn't any unusual flirting," a source tells us
And at the end of the night, they didn't even leave together. Willis was the first to go, followed by Efron who was bombarded on the street by overzealous paparazzi.