Good Charlotte consists of Joel Madden, Paul Thomas, Billy Martin, Dean Butterworth and what current coach on "The Voice Australia"
Benji Madden Benjamin Levi "Benji" Madden (born Benjamin Levi Combs on March 11, 1979) is an American guitarist, vocalist, songwriter, and producer. He is the lead guitarist and backing vocalist for the band Good Charlotte, as well as pop rock collaboration The Madden Brothers. He formed both of these acts with his identical twin brother, Joel Madden. Benji is currently a coach on "The Voice Australia".
Reigan Derry Reigan Elisse Derry (born 19 September 1988), also known mononymously as Reigan, is an Australian singer and songwriter. Derry rose to fame after placing eleventh on the fourth season of "Australian Idol" in 2006. The following year, she became a member of the Australian pop duo Scarlett Belle, who disbanded in 2011. Three years later, Derry placed fourth on the sixth season of "The X Factor Australia". She subsequently received a recording contract with Sony Music Australia and released her debut extended play, "All of the Pieces", in December 2014.