Question: all the coaches that have been on the voice?
Answer: Blake Shelton. Seasons 1-Present., Kelly Clarkson. Seasons 14-Present. ... , John Legend. Seasons 16-Present. ... , Adam Levine. Seasons 1-16. ... , Pharrell Williams. Seasons 7-10. ... , Alicia Keys. Seasons 11-12, 14. ... , Nick Jonas. Season 18. ... , Christina Aguilera. Seasons 1-3, 5, 8, 10. ...