Fifty Shades of Grey's Dakota Johnson Gets Ready for a Night of Music at Petty Fest 2014!

Dakota Johnson shows off her gorgeous smile as she walks into the El Rey Theater for Petty Fest 2014 on Thursday night (April 3) in Los Angeles.

The 24-year-old Fifty Shades of Grey actress was joined for the night of music by her pal and model Ruby Stewart.

The night of music celebrating musician Tom Petty included Danny Masterson, James Valentine of Maroon 5, Flea, Albert Hammond Jr., The Walking Papers, Brendan Benson, Nikki Lane, Dhani Harrison, Jason Lee, and many more acts!

10+ pictures inside of Dakota Johnson at Petty Fest 2014…