Zac Efron Wearing Yellow Lorax Mustache Pictures

Zac Efron and Danny DeVito joined a group of children today at the New York Public Library for a reading of Dr. Seuss's The Lorax. Zac and Danny, who both voice characters in the 3D film based on Seuss's fable that opens today, took the stage and read aloud as part of the National Education Association's Read Across America event.

It's been a busy week for Zac. He stopped by Today and chatted with Matt Lauer just yesterday. Zac addressed his red-carpet condom incident and simply explained his new "pocket checking policy" before major events. While Zac and Danny take the East Coast by storm, their other costar Taylor Swift is around the globe in Australia following a romantic weekend in LA. Taylor went on a date with Tim Tebow, according to reports, though it's Zac who plays her love interest on screen.