Taylor Brings Avril Lavigne and OMI On Stage

We will be remembered...

While some seem to find the 1989 World Tour guest stars excessive at this point, one day they'll serve as a reminder of all the big names and songs anywhere from the 1990s onwards to today.

It's Taylor's unique way of creating her very own multi-million dollar time capsule.

Tonight the early 2000s was represented by the one and only Avril Lavigne, who belted out her signature hit Complicated with Taylor:

Repping for 2015 was OMI, who duetted his addictive #1 smash Cheerleader with Swift (and the packed San Diego arena):

Taylor thanked the stars on Twitter after the show:

Is there anyone you're still hoping to see on the 1989 stage? Let us know in Exhale!