Even though "The LEGO Movie" was snubbed at the Oscars this year for best animated picture, the film's infectious theme song, "Everything is Awesome," was up for best original song.
While performing their hit, Tegan and Sara took advantage of making their appearance extra awesome.
Batman himself appeared on stage with his sidekick Questlove dressed up as the Boy Wonder, Robin.
![everything is awesome](https://static-ssl.businessinsider.com/image/54eb71b769beddbf3085da73-1200-800/everything-is-awesome.jpg)
Kevin Winter/Getty Images
If it wasn't Will Arnett, it sounded just like him. Which means that it might have been the real Batman.
- Empire Magazine (@empiremagazine) $4
Please tell me Will Arnett is actually in that Batman suit.
- Amy Plitt (@plitter) $4
Even better? According to "The Lego Movie" director Chris Miller, Arnett was wearing the Batman suit from "Batman Forever."
The Keaton Batman suit was too "delicate" from aging, so obv the next choice was Kilmer
- Chris Miller (@chrizmillr) $4
The one Val Kilmer wore.
Yeah. Everything is awesome.
Watch the full performance below: