Zac Efron's best friend, Bubba, dished 5 secrets to J-14 about Zac!

1) "When he first moved to L.A., Zac slept on a mattress on the floor."

2) "We both go to L.A. Fitness and then always get the PB&J smoothie there."

3) "On the set of '17 Again', Zac got on Perez Hilton on his iPhone and was like, 'Man, this guy just tears me up!"

4) "When we were young, we'd sneak into the gym and climb the rock wall and start lifting weights."

5) "We take care of each other and make sure we eat and take showers. He'll be like, 'You smell!' and I'll shower.,"

Source: J-14 magazine