What singer born in London in 1988 joined The Voice as a new judge in 2015?
The Voice (Australia season 4) The fourth season of "The Voice" premiered on 28 June 2015. Ricky Martin and Joel Madden returned as coaches for the fourth season. On 13 January 2015, it was announced that Delta Goodrem would return to the panel, and new judges Jessie J and Benji Madden would join the series, replacing former judges Kylie Minogue and will.i.am. On 22 February 2015, it was announced that Sonia Kruger would be joining the fourth season as a co-host with Darren McMullen.
The X Factor (UK series 8) The X Factor is a British television music competition to find new singing talent. The eighth series commenced airing on ITV on 20 August 2011 and ended on 11 December 2011. The winner was Little Mix, a four-piece girl group known earlier in the series as Rhythmix, consisting of members Jesy Nelson, Perrie Edwards, Leigh-Anne Pinnock, and Jade Thirlwall. They became the first act in the groups category to win in the UK show's history with new judge Tulisa emerging as their winning mentor. Dermot O'Leary presented the main show on ITV, while Caroline Flack and series 6 runner-up Olly Murs co-presented the spin-off show "The Xtra Factor" on ITV2, replacing Konnie Huq from the previous year. Louis Walsh returned to the judging panel and was joined by Gary Barlow, Kelly Rowland and Tulisa. Barlow, Rowland and Tulisa joined the panel as replacements for former judges, Simon Cowell, Dannii Minogue and Cheryl Cole. Series 5 winner Alexandra Burke served as a guest judge for week 4 of the live shows due to Rowland having a throat infection.