10 Best Celeb Quotes This Week

Tight squeeze! Why Will Ferrell won't fit an Elf sequel into his schedule. Plus, more from Sofia Vergara, Britney Spears and other stars

  •  photo | John Mayer, Katy Perry

Credit: Courtesy John Mayer

Updated: Friday Dec 20, 2013 | 06:00 AM EST By: Karen J. Quan and Lauren Lieberman

"Relationships are kind of like riding a bull – you hold on for dear life. Sometimes you get a little buck here and there, but you get back on."
Katy Perry, who costarred (and rode a mechanical bull) in the music video for "Who You Love" with boyfriend John Mayer, on Good Morning America