Pop superstar Cher has postponed her U.S. tour for a second time after struggling to recover from a viral infection.

The music veteran halted her Dressed to Kill trek earlier this month (Sep14) after falling sick, but was due to resume the shows on 15 September (14) in Allentown, Pennsylvania.

However, the show was pushed back until December (14) and Cher has now postponed the rest of her upcoming dates after doctors advised to take more time to recuperate.

Cher's representative says, "The initial viral infection affected her kidneys which has delayed Cher's recovery time. Cher's doctors have advised her to extend her rest period and expect her to make a full recovery"

A statement from the star reads, "I want to thank all my fans for their good wishes, patience and prayers. The doctors assure me that I will be totally well by November 9th and ready to perform my show. I'm truly sorry that I can't get on the stage sooner. But, the good news is that I'm on the mend and feeling better every day. I can't wait to see you all."

Cher has also addressed her ongoing health issues in a series of posts on Twitter.com, which read, "I'm so sorry I had 2 (to) move shows & disappoint u (you). I don't cancel unless I can't get up. This virus is a killer... I hate being sick & deplore cancelling... I (forgot) 2 say sorry 4 (for) s**ewing up plans, disappointing (everyone)... Believe I am desolate, because I've disappointed u (sic)."

The postponed dates include stops in New Jersey and New York which have been pushed back until December (14).

She is due back on stage in Lubbock, Texas on 9 November (14).