Demi Lovato, Tori Kelly to perform at 2015 MTV VMAs

Demi Lovato and Tori Kelly will perform at the 2015 MTV Video Music Awards.

The 23-year-old pop star and 22-year-old singer-songwriter were revealed Tuesday, along with Pharrell Williams, Macklemore & Ryan Lewis, and Twenty One Pilots featuring A$AP Rocky. The five musical acts join previously announced performer The Weeknd.

Lovato, Macklemore & Ryan Lewis, A$AP Rocky and Pharrell Williams have performed at the annual ceremony in the past, while Kelly is a first-time attendee and performer. The singer is known for the single "Nobody Love," and released her first album, Unbreakable Smile, in June.

The 2015 MTV VMAs will air Aug. 30 at 9 p.m. ET on MTV. Singer Miley Cyrus will host the ceremony, with rapper Kanye West to receive the Michael Jackson Video Vanguard Award. Taylor Swift, Ed Sheeran and Kendrick Lamar lead the nominations.