Justin Timberlake has been forced to cancel to more concert dates. The pop star is said to still be suffering from bruised vocal cords.

The postponed dates from his “Man of the Woods” tour are for Tacoma, Wash. They had previously been scheduled for Nov. 12 and 13 have been pushed back to Feb. 10 and 11 of next year.

His next tour date is still scheduled for Moda Center in Portland, Ore. On Nov. 16.

Timberlake has also shows in New York from December to January.

“Hey guys, I’m sorry to announce I have to postpone the show at MSG tonight on doctor’s orders. My vocal cords are severely bruised. I’m gonna make this up to you and the new show will be on my birthday, January 31. More info to come. Again, I’m so sorry to do this, but excited to see you soon. Love, J” he posted on Instagram,

He is currently, silently, promoting his new book Hindsight: & All the Things I Can't See in Front of Me.

Here is the book's synopsis:

In his first book, Justin Timberlake has created a characteristically dynamic experience, one that combines an intimate, remarkable collection of anecdotes, reflections, and observations on his life and work with hundreds of candid images from his personal archives that range from his early years to the present day, in locations around the world, both on and off the stage.

Justin discusses many aspects of his childhood, including his very early love of music and the inspiration behind many of his hit songs and albums. He talks about his songwriting process, offering the back story to many of his hits. He muses on his collaborations with other artists and directors, sharing the details of many performances in concert, TV comedy, and film. He also reflects on who he is, examining what makes him tick, speaking candidly about fatherhood, family, close relationships, struggles, and his search to find an inner calm and strength.

Living a creative life, observing and finding inspiration in the world, taking risks and listening to an inner voice—this is Justin Timberlake.