From what I've found online it looks like there are 2 Dreamgirls "Tribute" albums about to be released. One is "Tribute to Dreamgirls" and the artists are listed as the "Stage Door Players". Typically this would indicate a low budget bargain bin knock off recording. The other is titled "Tribute to the Soundtrack Dreamgirls" and it's put out by CC Entertainment. The "CC" appears to be short for CopyCats and it seems as if all of their recordings are piano tributes. I think they have a piano tribute to Wicked that's currently in release.