Every 'The Voice' Coach Ever, Including Ones You Probably Forgot

The Voice has only been on television since 2012, but there have already been 16 seasons of the hit NBC singing competition series and over a dozen celebrity coaches!

Can you remember all 13 music megastars who have sat in one of the red chairs as a coach? You’ve probably forgotten some of them and we’re here to refresh your memory.

The only two stars to appear on all 16 seasons so far are Adam Levine and Blake Shelton while the other two chairs have gone to a rotating roster of musicians.

The current season of The Voice airs on Monday and Tuesday nights at 8/7c on NBC.

Click through the slideshow to see very coach from The Voice…