For the 12th year in a row, Seacrest will host the event from Times Square in New York.
The actress and comedian will provide live onsite reporting in New York.
Viewers can watch the "Chains" singer perform from Times Square.
The "Never Be the Same" singer will be rocking out and counting down in New York.
The "Already Gone" singers will sing in New York.
The Pretty Little Liars star will host the Central Time Zone countdown in New Orleans.
The "Radioactive" singers will ring in 2018 from Allstate's Fan Fest.
The "Shut Up and Dance" singers will take the stage leading up to the midnight countdown near Jackson Square.
Ciara will host the West Coast festivities.
Get ready West Coast fans! The K-pop group will be performing during the Los Angeles-based festivities.
The "Love So Soft" singer will help ring in the new year with a West Coast performance.
The "Treat You Better" singer will perform at the Los Angeles celebration
The "Young Dumb & Broke" singer will also perform with Marshmello.
Fans can listen to the "One Call Away" singer during the West Coast celebration.
If you're a fan of the group's hit "Handclap," make sure to watch them perform during the West Coast special.
The "Heaven" singer will perform during the West Coast festivities.