Taylor Swift, Alicia Keys win at the iHeartRadio Music Awards (21 images)

Musicians, winners and nominees arrive for the sixth annual iHeartRadio Music Awards at the Microsoft Theater in Los Angeles on Thursday.

Jordan Davos, winner of the Best New Country Artist. Photo by Jim Ruymen/UPI

License photo | Permalink

---

---

Katy Perry (R) and Zedd arrive on the red carpet. Zedd won Song of the Year, Dance Song of the Year for "The Middle." Photo by Jim Ruymen/UPI

License photo | Permalink

---

---

John Legend performed "Preach." Photo by Jim Ruymen/UPI

License photo | Permalink

---

---

Kacey Musgraves performed "Rainbow." Photo by Jim Ruymen/UPI

License photo | Permalink

---

---