Rihanna

R&B singer Rihanna is getting ready to join Kanye West on his 2008 tour, which will also feature N.E.R.D and Lupe Fiasco. The Barbados superstar singer is backing her third album, "Good Girl Gone Bad," which was released last June. West tipped the news at his blog yesterday (1/29) by posting an image of a "Star Wars"-themed tour poster that heralds the forthcoming "Glow in the Dark Tour" and lists Rihanna, N.E.R.D. and Lupe Fiasco as his "co-stars" on the outing. No other details about the tour have yet been revealed. Released last September, West’s "Graduation" debuted at No. 1 on The Billboard 200 after posting first-week sales of almost 957,000 units. That number breaks the personal debut-week sales record West set with his 2005 sophomore release, "Late Registration.” "Graduation" also established a new one-week digital sales record, logging more than 132,000 album downloads. N.E.R.D. reportedly is in the studio putting the finishing touches on a follow-up to 2004's "Fly Or Die," expected to hit stores this spring.