The handsome young stars were both courtside at a basketball game in LA watching the Lakers take on the Charlotte Bobcats.
And while Zac – who is being mentioned as a possible lead in the new Spider-Man film - cuddled up to his long-time love Vanessa Hudgens, Taylor was without a lady on his arm.
But if he was missing music star Taylor Swift, from whom he is rumoured to have split at the end of last year, the 17-year-old wasn't showing it, laughing and clapping throughout the game.
Since breaking up, Taylor has reportedly seen his ex-girlfriend as they had to film further scenes for their new movie Valentine's Day.
And, according to her, they remain in touch. "We're texting," said the 20-year-old blonde.
With the Twilight star's busy schedule, he won't have much time for dating, in any case.
This year he's due to film Breaking Dawn - the final instalment of the vampire saga - and promote the third movie Eclipse when it comes out in the summer.
And he's also been signed up to play the lead in film adaptation of animated series Max Steel.