<P> CeeLo Green of Gnarls Barkley and Adam Levine of Maroon 5 became the first confirmed coaches in February 2011, followed by Christina Aguilera and Blake Shelton in March . Aguilera and Green did not return for season four and were replaced by Shakira and Usher as substitute coaches . Aguilera and Green then returned for season five, while Shakira and Usher returned for season six . In an interview with Ellen DeGeneres in February 2014, Green revealed that he would not be returning to The Voice . On March 31, 2014, it was announced that Pharrell Williams would become Green's replacement . On April 19, 2014, it was announced that No Doubt's Gwen Stefani would replace Aguilera in season seven due to her pregnancy . On May 20, 2014, Shakira and Usher confirmed that after season six, they would focus on their music . On March 25, 2016, Miley Cyrus confirmed that following her role as key advisor during the tenth season that she would be joining the series once again in its eleventh season as a coach, replacing Christina Aguilera . That same day, Alicia Keys was also announced to be joining the series as a coach for the eleventh season . On October 18, 2016, it was announced that Stefani would re-join the coaches' panel for the series' twelfth season, alongside returning coaches Keys, Levine and Shelton; it was also confirmed that Cyrus would return for the thirteenth season . </P> <P> On April 27, 2017, in an interview published by TV Insider, Keys confirmed that the twelfth season would be her last . She stated, "Who knows what the future holds, but I know this one is my final season ." On May 10, 2017, NBC announced that Jennifer Hudson would join the coaches lineup for the series' thirteenth season . On May 11, 2017, it was announced that Kelly Clarkson would be a coach in season fourteen in 2018 . On October 18, 2017, NBC announced that Alicia Keys will be returning to the series for the upcoming 14th season . </P> <Ul> <Li> <P> Adam Levine </P> </Li> <Li> <P> CeeLo Green (2011--2013) </P> </Li> <Li> <P> Christina Aguilera (2011--2016) </P> </Li> <Li> <P> Blake Shelton </P> </Li> <Li> <P> Shakira (2013--2014) </P> </Li> <Li> <P> Usher (2013--2014) </P> </Li> <Li> <P> Gwen Stefani (2014--2015, 2017) </P> </Li> <Li> <P> Pharrell Williams (2014--2016) </P> </Li> <Li> <P> Miley Cyrus (2016--2017) </P> </Li> <Li> <P> Alicia Keys (2016--) </P> </Li> <Li> <P> Jennifer Hudson (2017) </P> </Li> <Li> <P> Kelly Clarkson (2018) </P> </Li> </Ul> <Li> <P> Adam Levine </P> </Li>

Who has been the coaches on the voice