Timberlake, Bieber & More Set for 20/20's ROCK 'N ROLL ROYALTY Tonight

Get ready to rock with some of the biggest names and voices in music in a two-hour, star-studded special, "Rock 'n' Royalty: Billboard's All-Stars." Anchored by Barbara Walters, the special features the best and most outrageous moments from interviews with music's all-stars, including Justin Bieber, Beyoncé, Mariah Carey, Cher, Lady Gaga, Madonna, One Direction, Taylor Swift and Keith Urban, plus new interviews with Lady Antebellum and Tracy Morgan -- who is hosting "The 2013 Billboard Music Awards" Sunday night on ABC. "Rock 'n' Royalty: Billboard's All-Stars" airs as a special edition of "20/20," TONIGHT, MAY 18 (9:00-11:00 p.m., ET) on the ABC Television Network.

Interviews include:

Mariah Carey with Barbara Walters (OAD 10/21/11, 1/7/13)
Taylor Swift with Katie Couric (OAD 10/26/12)
Cher with Cynthia McFadden (OAD 5/3/13)
Justin Timberlake with Barbara Walters (OAD 11/4/02)
Justin Bieber with Barbara Walters (OAD 12/9/10)
Madonna with Cynthia McFadden (OAD 1/31/12)
Lady Gaga with Barbara Walters (OAD 12/9/09)
Lady Antebellum with Juju Chang
Beyoncé with Amy Robach (OAD 5-6-13)
Keith Urban with Robin Roberts (OAD 11/08/11)
One Direction with Barbara Walters (OAD 12/12/12)
Tracy Morgan with Barbara Walters

John Green is executive producer of "Rock 'n' Royalty: Billboard's All Stars." Janice Johnston is senior producer.