Photos:: â€˜American Idol’ series finale | Show highlights

“American Idol” winner Trent Harmon, center right, performs during the show’s finale.

Trent Harmon, winner of “American Idol,” celebrates with fellow contestants.

“American Idol” winner Trent Harmon celebrates as judges Jennifer Lopez and Keith Urban look on.

Original “American Idol” judges Randy Jackson, Paula Abdul and Simon Cowell appear onstage at the show’s finale.

Ryan Seacrest looks on as William Hung performs during the “American Idol” finale.

Ruben Studdard and Amber Holcomb perform during the “American Idol” finale.

Marley Fletcher and Harry Connick Jr. perform during the “American Idol” finale.

Jessica Sanchez performs during the “American Idol” finale.

Joshua Ledet performs during the “American Idol” finale.

Katharine McPhee

Host Ryan Seacrest speaks in the audience during FOX’s “American Idol” Finale For The Farewell Season at Dolby Theatre.

Lauren Alaina, from left, Kree Harrison, Skylar Laine, Kellie Pickler and Diana DeGarmo

A screen shows a pre-taped performance by Jennifer Lopez during the “American Idol” farewell season finale.

Carly Smithson

Ruben Studdard, left, and Amber Holcomb

Singers Marley Fletcher, left, and Harry Connick, Jr.

Taylor Hicks

Recording artist Jessica Sanchez

Singer Joshua Ledet

Jennifer Lopez takes a selfie at the “American Idol” farewell season finale.

Recording artists Constantine Maroulis, left, and James Durbin perform onstage during “American Idol” finale.

Recording artists Caleb Johnson, left, Constantine Maroulis, Bo Bice and James Durbin

Diana DeGarmo

Skylar Laine

Larry Platt

Keith Urban and Carrie Underwood

Recording artists Caleb Johnson, Constantine Maroulis, Chris Daughtry and James Durbin

Recording artists Jordin Sparks, left, Allison Iraheta, Tamyra Gray and Justin Guarini perform onstage during Fox’s “American Idol” finale at Dolby Theatre.

Pia Toscano

Singers Trent Harmon and La’Porsha Renae

Singers Trent Harmon, left, La’Porsha Renae and Dalton Rapattoni perform onstage during Fox’s “American Idol” finale

“American Idol” past winners and finalists perform together.

From the audience: “American Idol” past winners and finalists perform together onstage.

Host Ryan Seacrest, left, and Brian Dunkleman

Actress-singer Jennifer Lopez and singer Harry Connick Jr. onstage during Fox’s “American Idol” finale.

Fans at the “American Idol” finale.

The “American Idol” stage is set for the finale.

President Obama addresses the audience during the “American Idol” finale.