Miley Cyrus singer ring el rey theatre myspace party denim jacket leather cyruselrey061213_01-full.jpg

Well, make that a re-launch party ... remember how much fun this site was back in the day?

Miley Cyrus attended the MySpace Launch Party at the El Ray Theatre on Wednesday night, and the 20-year-old starlet flashed a smile -- and her diamond engagement ring -- when we snapped her heading in to the event. Miley was wearing the same baggy jeans we snapped her in earlier in the day, and this cropped top looks a bit familiar as well. We're not sold on the outfit, but with abs like this, who cares?

Justin Timberlake, Kelly Osbourne and Vanessa Hudgens also attended the bash as well ... click the gallery below for more party pics!