The most notorious crimes of the '90s are being dug up left and right lately, from The People v. O.J. Simpson: American Crime Story to the various specials on JonBenét Ramsey's murder. Coming up on Jan. 5, ABC is premiering Truth and Lies: The Menendez Brothers – American Sons, American Murderers, a documentary special. In case you don't remember (or you weren't born yet), Erik and Lyle Menendez were convicted of brutally slaying their wealthy parents in their Beverly Hills, CA, mansion on the night of Aug. 20, 1989. The trial was a media circus, and the way the case unfolded was unbelievable. Also unbelievable? The bizarrely upbeat songs in this trailer. You can watch below, or head over to People for a larger version.