The Rat Pack (or at least the modern Las Vegas reincarnation of them) was sued by song-writers of "Ain't that a Kick in the Head", "Everybody Loves Somebody", and "Come Fly with Me" for copyright infringement of the compositions. (Alleged infringement occurred during performances of the Rat Pack Show at the Greek Isles Hotel & Casino, and sale of associated CDs.)
What's the commotion, eh? WHAT'S THE COMMOTION?!
[Barton Music Corp. v. TRP Entertainment, LLC et al., 07-cv-01361-BES-PAL, filed Oct. 9, 2007, D.C. Nev.]