Bang! Check out Taylor Swift's customized 'Bad Blood' emoji

We already knew the Bad Blood video Taylor Swift is premiering at tonight's Billboard Music Awards has Selena Gomez, Lena Dunham, Kendrick Lamar and all sorts of other stars in it. Turns out Bad Blood has its own customized emoji, too.

Twitter users who include the hashtag

inside their Tweets will see the customized emoji — a bandage with a bullet hole through it — automatically appear on their mobile devices.

The image is a reference to a lyric in Swift's song — "Band-Aids don't fix bullet holes" — that also is used as a slogan on the Sin City-inspired movie-poster images the singer has tweeted to tease the video over the last several days.

Swift's emoji is similar to the "hashflags" Twitter introduced for the 2010 World Cup, where specific hashtags within tweets created national flags. Swift is the first celebrity to get such an emoji.

The emoji almost surely will send tweets about Bad Blood into the stratosphere, since anticipation for Sunday's video premiere already has generated more than a half-million tweets this month.

Swift announced Saturday that Gomez would have the lead role in what's shaping up to be a massive girl-versus-girl battle royale. Swift's posters also have featured Lamar (as Welvin Da Great), Dunham (Lucky Fiori), Karlie Kloss (as Knockout), Martha Hunt (HomeSlice), Jessica Alba (Domino), Serayah (Dilemma), Hailee Steinfeld (The Trinity), Ellie Goulding (Destructa X), GiGi Hadid (Slay-Z), Paramore's Hayley Williams (The Crimson Curse), Zendaya (Cut-Throat), Lily Aldridge (Frostbyte), Ellen Pompeo (Luna), Mariska Hargitay (Justice), Cara Delevingne (Mother Chucker) and Cindy Crawford (Headmistress).

According to Swift, each actor and actress in the video

.

Swift has a field-leading 14 nominations for tonight's ceremony, including one for the fan-voted Billboard Chart Achievement Award.