Iggy Azalea and Lorde were two of the many A-list artists that appeared at this weekend's star-studded iHeartRadio Music Festival which also included the likes of Taylor Swift, One Direction, Ariana Grande, Nicki Minaj, Chris Brown and more.

Azalea, wearing a colorful, sheer diamond pattern outfit, performed her four biggest hits -- 'Work,' 'Bounce,' 'Black Widow' and 'Fancy,' -- but without the help of her collaborators. Nevertheless, she was her usual bad-ass self, as she showed fans why she's a new challenger for the title of Queen of Hip-Hop by doing her songs solo.

Meanwhile another fierce female, Lorde, also put on quite a show herself. She performed 'Glory and Gore,' 'Tennis Court,' 'Royals' and 'Team' for her roughly 20-minute set at the MGM Grand Arena in Las Vegas.

Both Azalea and Lorde find themselves pretty busy this fall. Azalea has already announced that 'The New Classic' will be rereleased with six new tracks, including one with Ellie Goulding. Lorde has been selected as the curator for 'The Hunger Games: Mockingjay - Part 1' soundtrack, and has also recorded a song for the album as well.

Click on the first video below to watch Iggy's performance, and check out Lorde's set by watching the video below.

Watch Iggy Azalea at the iHeartRadio Music Festival

Watch Lorde at the iHeartRadio Music Festival

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