Kristen Bell has joined the Christina Aguilera/Cher musical, Burlesque. The gorgeous actress is currently co-starring in the Vince Vaughn and Jon Favreau starring comedy Couples Retreat, which opens here next week, and was also the star of cult TV Show, Veronica Mars. According to Empire Online the actress will play Nikki, the lead dancer at a burlesque nightclub run by Cher. I'm finding it hard not sound plain sleazy here, but is it wrong that I'm looking forward to seeing that? Cher in her crotchless jocks on the other hand...