R&B/soul man Robin Thicke [ tickets ] canceled his US tour at the last minute, apparently because of a vocal ailment.

"All tour dates must be rescheduled due to doctor-ordered vocal rest until the end of the year," said a Sunday (11/11) blog posting at his MySpace page. "Thank you for your understanding and support."

The singer/pianist was scheduled to kick off the outing yesterday in Englewood, CO, and visit clubs and theaters from coast to coast through mid-December. There's no word yet as to when the tour will be rescheduled.

Thicke played across the country in the spring to support his latest album, "The Evolution of Robin Thicke," which reached No. 5 on The Billboard 200 when it was released last year. The set has spawned the platinum-selling song "Lost Without U" as well as the latest single, "Can U Believe," which is making waves at R&B/hip-hop radio. An album sampler is streaming at the singer's MySpace page.

Thicke, a Grammy-winning songwriter and producer, is just now breaking through as a performer. He won the Breakthrough Artist trophy at last week's Vibe Awards and is up for the same honor at the Nov. 18 American Music Awards.

At age 16, with no formal training, Thicke began writing and producing music for artists including Brandy and Brian McKnight, according to his bio. He has since amassed dozens of gold and platinum albums with the likes of Usher, Mary J. Blige, Michael Jackson and Christina Aguilera.

The multifaceted artist is the son of actor Alan Thicke and singer/soap star Gloria Loring.