The iHeartRadio Jingle Ball tour is an annual event for music lovers of all genres. Due to the fact that it incorporates the music of so many styles, the annual broadcast is of interest to all types of audiences. So, what artists are featured in this year's lineup and when can viewers see the 2019 performances?

"Harleys in Hawaii" songbird Katy Perry, "Living Proof" singer Camila Cabello, and "Lover" songstress Taylor Swift are all set to perform at this year's show. This wraps up a big year for Swift. Not only did she spend part of the year in a feud with Scooter Braun and fighting for the right to play her old music at the 2019 Billboard Music Awards, but she also graced the September issue of Vogue and gave a candid interview.

Additionally, she also won a VMA in August for her "You Need To Calm Down" music video, even though it was almost accidentally given to somebody else.

BTS, the K-Pop group behind the hit "Boy With Luv," will also perform. This marks the conclusion of a two-month hiatus for the band, which ended their break in September. They have also earned various achievements and have been the recipients of several unique honors throughout the year.

Sam Smith and the Jonas Brothers, who released a new Christmas song earlier this year, will also make appearances at the star-studded concert.

As for how fans can watch the performances, those who are not able to attend one of the various live concerts can watch the live stream of the Z100's Jingle Ball in New York City on The CW app and on Friday, Dec. 13. Additionally, the CW Network will broadcast a special on Thursday, Dec. 19, at 8 p.m. EST.

sam smith jingle ball
Sam Smith performs onstage during 102.7 KIIS FM’s Jingle Ball at The Forum on Dec. 1, 2017 in Inglewood, California. Kevork Djansezian/Getty Images