Sugarland's Jennifer Nettles will continue her vocal rest under her doctor's orders this weekend, according to a press release from the duo's record label. As a result, Sugarland will not perform on Thursday (July 23) in Salt Lake City, Friday (July 24) in Primm, Nev., and Saturday (July 25) in Phoenix. Sugarland's tour is scheduled to continue July 30 in Bend, Ore. It has not been announced whether the Salt Lake City or Phoenix shows will be rescheduled. The Primm, Nev., show has been postponed until Aug. 6, 2010.