Who was by Justin Bieber's side during the 2012 Vanity Fair Oscar Party in Los Angeles?

Explanation

It was during the Vanity Fair Oscar Party on 27 February 2011 that Justin Bieber and Selena Gomez first officially outed themselves as a couple. The rest of the year they were seen together at locations all over the world. They did not attend the same party together in 2012, however: Selena turned up without Justin. Was this the beginning of the end for the two? Or was Justin just busy producing his upcoming album "Believe"? Time will show. If they do split up, fans are likely to not know until much later, just like when they first got together.