Portrait of musicians taken backstage during Sónar Music Festival 2015 in Reykjavík, Iceland.

Photos of the Billboard Hot 100 Music Festival, Day 1 at Nikon at Jones Beach Theatre in Wantagh, NY. August 22, 2015.

Photos of the Billboard Hot 100 Music Festival, Day 2 at Nikon at Jones Beach Theatre in Wantagh, NY. August 23, 2015.

Photos of Snoop Dogg performing live at TIDAL Live at Webster Hall, NYC. September 30, 2015.

Photos of Jidenna performing live at TIDAL Live at Webster Hall, NYC. September 30, 2015.

Photos of Stromae performing live at Madison Square Garden, NYC. October 1, 2015.

Photos of Janelle Monae performing live at Madison Square Garden, NYC. October 1, 2015.

Photos of Jidenna performing live at Madison Square Garden, NYC. October 1, 2015.

Photos of Grace Potter performing live at Radio City Music Hall, NYC. October 3, 2015.

Photos of an exclusive iHeartRadio Q&A with Halsey hosted by Z100's Maxwell at the iHeartRadio Theater, NYC. October 25, 2015.

Photos of Dead & Company featuring Grateful Dead members Mickey Hart, Bill Kreutzmann and Bob Weir with John Mayer performing live at Madison Square Garden in New York City on October 31, 2015.

Photos of The Weeknd performing live for "The Madness Fall Tour" at Prudential Center in Newark, NJ on November 11, 2015.

Photos of Banks performing live for "The Madness Fall Tour" at Prudential Center in Newark, NJ on November 11, 2015.

Photos of Travis Scott performing live for "The Madness Fall Tour" at Prudential Center in Newark, NJ on November 11, 2015.

Photos of the "It Always Seems Impossible Until It Is Done" World AIDS Day event featuring Bono, Trevor Noah, Vice President Joe Biden and Jessie J at Carnegie Hall in New York, NY on December 1, 2015.

Photos of Vanessa Carlton performing live at City Winery in New York, NY on November 30, 2015.

Photos of the iHeartRadio Jingle Ball 2015, hosted by Z100 New York at Madison Square Garden, NYC

Photos of Jennifer Nettles performing live on the "CMT Presents Jennifer Nettles with 2016 Next Women of Country Tour" at Beacon Theatre, NYC on January 20, 2016.

Photos of Ryan Bingham performing live on the "Fear and Saturday Night" Tour 2016 at Irving Plaza, NYC on February 5, 2016.

Photos of Marc Anthony performing live at Prudential Center in Newark, NJ on February 13, 2016.

Photos of Cassadee Pope performing live on the "I'm Comin' Over" Tour 2016 at PlayStation Theater, NYC on February 25, 2016.

Photos of Chris Young performing live on the "I'm Comin' Over" Tour 2016 at PlayStation Theater, NYC on February 25, 2016.

Photos of Brian Fallon & the Crowes performing live at Irving Plaza, NYC on March 9, 2016.

Photos of Wyclef Jean performing live at Brooklyn Bowl on March 22, 2016 in Brooklyn, NY.

Photos of The Avett Brothers performing live at Madison Square Garden, NYC on April 8, 2016.

Photos of Brandi Carlile performing live at Madison Square Garden, NYC on April 8, 2016.

Photos of David Gilmour performing live on the "Rattle That Lock" World Tour 2016 at Madison Square Garden, NYC on April 12, 2016.

Photos of The Band Perry performing live on stage for NBC's "Today" at Rockefeller Plaza, NYC on April 27, 2016.

Photos of the band Tegan and Sara performing live at Le Poisson Rouge, NYC on May 9, 2016.

Photos of the band Dead Stars performing live at Rough Trade in Brooklyn, NY on March 4, 2016.

Photos of the musician Rufus Wainwright performing "Rufus Does Judy At Carnegie Hall" live on stage at Carnegie Hall, NYC on June 16, 2016.

Photos of the musician Charlie Puth performing live on stage for the Citi Concert Series on NBC's TODAY Show at Rockefeller Plaza, NYC on June 17, 2016.

Photos of the band Matt & Kim performing live on stage for the "Delirium World Tour" at Madison Square Garden, NYC on June 21, 2016.

Photos of the musician Ellie Goulding performing live on stage for the "Delirium World Tour" at Madison Square Garden, NYC on June 21, 2016.

Photos of the musician Blake Shelton performing live on stage for the Citi Concert Series on NBC's TODAY Show at Rockefeller Plaza in New York, NY on August 5, 2016.

Photos of the musician Billy Joel performing live on stage at Madison Square Garden in New York, NY on August 9, 2016.

Photos of the musician Nai Palm of the band Hiatus Kaiyote performing live on stage for Samsung Pay X MasterCard at Samsung 837, NYC on July 19, 2016.

Photos of the reggaeton musicians Daddy Yankee and Don Omar performing live on stage at Madison Square Garden, NYC on July 30, 2016.

Photos of the musician Amos Lee performing live on stage at John Varvatos Bowery in New York, NY on August 2, 2016.

Portraits of the musician J Mascis of the band Dinosaur Jr. taken on-location at SiriusXM Studio in New York, NY on August 4, 2016

Photo of the musician James Bay performing live on stage at Radio City Music Hall, NYC on September 30, 2016.

Photo of John Legend performing live at an iHeartMedia AdWeek event at the iHeartMedia offices, NYC on September 28, 2016.

Photos of the Global Citizen Festival 2016 in Central Park, NYC on September 24, 2016.

Photos of the band Kansas performing live on stage at iHeartRadio Theater, NYC on October 3, 2016.

Portrait of Killer Mike and El-P of the rap group Run The Jewels taken on-location at SiriusXM Studios, NYC on March 1, 2017.

Photos of musician Billy Joel performing live to open the new Nassau Coliseum in Uniondale, NY on April 5, 2017.