Aussies, including Iggy Azalea and 5 Seconds of Summer, set to star at American Music Awards Taking the lead ... multi-nominee Iggy Azalea will perform "Booty" with Jennifer Lopez at the American Music Awards. Picture: Jack Plunkett/AP Source: AP Is this the American Music Awards or the Australian Music Awards? Iggy Azalea is the lead nominee at today's show. She will compete for top awards such as artist, new artist and single of the year for her smash hit, Fancy. The 24-year-old will also perform - she will take the stage with Jennifer Lopez for Booty - when the show is aired from Nokia Theatre, Los Angeles. Australian boy band 5 Seconds of Summer will battle Iggy Azalea for new artist of the year. Pitbull will host the 42nd annual AMAs and he will also perform. Picture: Christopher Polk/Getty Images Source: Getty Images Another Australian act, the boy band 5 Seconds of Summer, will battle Azalea for new artist of the year, capping out a successful year with a sold-out tour and top-selling debut album. The night will feature a slew of A-listers onstage: Taylor Swift, who will open the show, Garth Brooks, Fergie, Selena Gomez, Ariana Grande, Imagine Dragons, Lil Wayne, Lorde, Nicki Minaj, One Direction and Sam Smith. Azalea will battle heavyweights for artist of the year. Beyonce, Luke Bryan, One Direction and Katy Perry are her competitors. Perry, Pharrell and John Legend are also up for multiple awards. Their hits Dark Horse, Happy and All of Me will compete with Fancy and MAGIC's Rude for single of the year. All of the songs reached No 1 on Billboard's Hot 100 chart. Trailblazer ... Taylor Swift, whose 1989 sold more than 1 million units in its debut week, will receive the first-ever Dick Clark Award for Excellence. Picture: Greg Allen/AP Source: AP Azalea, Perry and Lorde are nominated for favourite female artist - pop/rock, while Legend, Pharrell and Smith are nominated for favourite male artist - pop/rock. Legend and Pharrell are also up for favourite male artist - soul/R & B, along with Chris Brown. Bryan, who was named entertainer of the year at the Country Music Association Awards this month, is up against Blake Shelton and Jason Aldean for favourite male artist - country. Miranda Lambert, Carrie Underwood and Kacey Musgraves are nominated for favourite female male artist - country. Hot competition ... Beyonce, pictured, Luke Bryan, One Direction and Katy Perry are Iggy Azalea's fellow nominees for Artist of the Year. Picture: AFP/Robyn Beck Source: AFP Swift, whose 1989 sold more than 1 million units in its debut week, will receive the first-ever Dick Clark Award for Excellence. All About That Bass singer Meghan Trainor, who will be a presenter, will battle Azalea, Smith, 5 Seconds of Summer and Bastille for new artist of the year. Other presenters include Drake, Jamie Foxx, Khloe Kardashian, Jenny McCarthy and TI. The soundtrack for Frozen, the year's top-selling album, is nominated for top soundtrack and will compete with The Fault In Our Stars and Guardians of the Galaxy: Awesome Mix, Vol 1, which reached No 1 on the Billboard 200 chart. Originally published as Aussies to star at US music awards