There's a brand-new category getting added to the 2015 MTV Video Music Awards, and you can vote right now. Introducing: Song of Summer.

Instead of debating about which song really carried you through these hot blistery months, MTV will help you declare it once and for all. Was it Selena Gomez's "Good For You" or Demi Lovato's "Cool For The Summer"? The Weeknd's "Can't Feel My Face" or David Guetta's "Hey Mama"? You can help us decide.

Here's how you vote: 1). Pick the song that you think is the Song of Summer. 2). Tweet or Instagram its hashtag (found below). 3). Vote up to 12 times per day.

Fifth Harmony - "Worth It" - #WorthItVMA

Major Lazer - "Lean On" - #LeanOnVMA

OMI - "Cheerleader" - #CheerleaderVMA

Taylor Swift - "Bad Blood" - #BadBloodVMA

David Guetta ft. Nicki Minaj - "Hey Mama" - #HeyMamaVMA

Fetty Wap - "My Way" - #MyWayVMA

Jack U ft. Justin Bieber - "Where Are U Now" - #WhereAreUNowVMA

5 Seconds of Summer - "She’s Kinda Hot" - #ShesKindaHotVMA

Silento - "Watch Me" - #WatchMeVMA

Demi Lovato - "Cool For the Summer" - #CoolForTheSummerVMA

The Weeknd - "Can’t Feel My Face" - #CantFeelMyFaceVMA

Selena Gomez ft. A$AP Rocky - "Good For You" - #GoodForYouVMA

Track the success of your favorite Song of the Summer at songofsummer.mtv.com.

The winner will be revealed live as part of the “2015 MTV Video Music Awards Pre-Show," airing at 8 PM ET/PT on Sunday, August 30, with Kelly Osbourne, Nick Jonas, Walk the Moon and more.

Now get voting!