TV Stevie Nicks Joins 'The Voice' By Jackie Willis 6:54 AM PDT, July 9, 2014 Getty Images Can we expect a Maroon 5, Fleetwood Mac collaboration to come out of this latest addition to The Voice?! The Associated Press reports that music legend Stevie Nicks will be coming on as an adviser for Adam Levine's team on the NBC singing show. RELATED PICS: Full List of American Idol WinnersSeason 7 of The Voice is already being filmed, and Nicks, 66, is right in the middle of it all, working with Levine's 12 team members in rehearsal and helping to assign songs. She won't be the only new face coming to the show. Gwen Stefani and Pharrell Williams have signed on to have their own swivel chairs as judges. The Voice returns to TV on Sept. 22.In addition, Fleetwood Mac will begin a 33-city tour on Sept. 30 in Minneapolis. Do you think Nicks will be a good adviser on The Voice?