The Cash Money Millionaires and St. Louis rapper Nelly canceled the final three dates of their co-headlining national Jingle Ballers Jam tour due to fatigue, according to a Nelly spokesperson.

The tour, which also featured Ja Rule and Kandi, missed California dates Wednesday in San Jose and Thursday (December 21) in Sacramento, and canceled a third gig set for Friday in Los Angeles. The three venues scheduled to host the shows have cited conflicting reasons for the cancellations, including poor weather and travel conditions and lackluster ticket sales.

The Jingle Ballers Jam was plagued with troubles from its start last month, including canceled appearances by Lil' Kim, Junior M.A.F.I.A., Lil' Cease, Trina and Trick Daddy.

In other Nelly concert news, the rapper, whose debut album, Country

Grammar, catapulted to #1 on the Billboard 200 albums chart earlier this year and is now at #16, will perform at a New Year's Eve celebration hosted by 'NSync's Lance Bass at New York's Roseland Ballroom.

According to Bass' Free Lance Entertainment, Ludacris, Kelly Price with Darius Green, Black Rob and the Sugarhill Gang will also perform.