Christina Aguilera has canceled her North American tour plans due to strained vocal chords. With rapper Chingy in tow, the artist was due to kick off the 28-city run May 13 in Seattle.

Christina Aguilera has canceled her North American tour plans due to strained vocal chords. With rapper Chingy in tow, the artist was due to kick off the 28-city run May 13 in Seattle.

According to a statement, doctors advised Aguilera to immediately rest and allow her voice time to fully recover. "I am extremely disappointed to have to cancel this tour," she says. "I was looking forward to being on the road again and spending time with my fans."

Aguilera planned the trek to further support her latest album, "Stripped." Released in October 2002, the RCA set debuted at No. 2 on The Billboard 200 and has sold 3.6 million copies in the United States, according to Nielsen SoundScan.

Chingy's Capitol debut, "Jackpot," debuted in August 2003 at No. 2 on The Billboard 200 and the Top R&B/Hip-Hop Albums chart. The set has sold 2.6 million copies.