Jennifer Aniston attended the "Horrible Bosses" Los Angeles premiere yesterday in a black beaded mini dress and strappy sandals. 

It looks like she's still wearing a ring on her engagement finger.  Earlier this week she was spotted with it while arriving at the "Daily Show with Jon Stewart" in New York City.  She's reportedly dating actor Justin Theroux.

In "Horrible Bosses" she plays the role of a sex-crazed dentist who ruthlessly harasses her dental assistant, played by It's Always Sunny in Philadelphia's Charlie Day.