Ansel Elgort had quite the night at the 2014 Teen Choice Awards on Sunday. Not only did he win four awards for his role in The Fault In Our Stars, but the movie won big, too! Judging by the actor's recent Instagram photos, it looks like one of the highlights of his night was being presented an award by Taylor Swift. He posted a pic of the two of them together with a caption that gushed over the singer (we'd do the same thing, Ansel!).
There are plenty of other famous guys and girls who have been just as starstruck. Click through to see more celebs who have geeked out, then tell us which moment you think is the cutest in the comments below.