Video: It's very short, and it doesn't give us much, but it's enough to have us squealing alongside Felicity in agreement: Best superhero team-up ever.
The brief teaser doesn't show much other than what appears to be Kara's first introduction (beyond Barry, of course) to the wider world of the CW-verse, meeting Ollie and the Legends. And yet, it's totally delightful to see Supergirl so... delighted.
It isn't clear whether "Heroes vs Aliens" is just a tagline for the ad or the actual name the CW is going for for the four-part event -- loosely based on the 1988 comic miniseries Invasion -- but honestly, it's the sort of simple, slightly camp kind of thing that works for something like this. Between this and yesterday's utterly joyful photos, we absolutely can't wait.
The event kicks off with Supergirl on November 29.