Even with five members, the Pussycat Dolls apparently need a lot of help making records. The L.A. ladies' dance-pop-heavy second album boasts cameos from stars like Snoop Dogg and Missy Elliott, as well as beats and melodies by big-name producers and co-writers like Rodney Jerkins and Polow Da Don. Some guests were worth the money: R. Kelly mixes sweet and sassy on the catchy slow jam "Out of the...