NEW YORK (AP) — R&B singer Maxwell has cancelled his short US tour after developing vocal swelling and haemorrhaging.

A representative for the singer said Friday that he has been advised by doctors to rest and undergo treatment. Maxwell’s six-date summer tour had shows planned for Los Angeles, Atlanta and Newark, NJ for July and August.

MAXWELL… developed vocal swelling and hemorrhaging

Maxwell said in the statement that cancelling the tour “sucks” and he plans to hit the road when his new album, blackSUMMERS’night, is released later this year.

The 39-year-old made his return to music in 2009 after a seven-year break with the platinum album BLACKsummers’night. It won the singer-songwriter two Grammy Awards, among other accolades.