She's long been swooning over musicians and this weekend Kate Hudson has plenty to swoon over at the iHeartRadio Music Festival in Las Vegas (September 20).

With her partner Matt Bellamy and his band Muse about to hit the stage, the "Almost Famous" star hit the red carpet in a form-fitting black top, matching skinnies, and a leather belt.

Dressed in a purple satin romper for her duties, the 34-year-old actress served as a presenter at the show.

That evening, Katy Perry, Queen, Adam Lambert, Fun., Keith Urban, Muse, Chris Brown, and more all took the stage at the huge event.