According to reports, party rockers LMFAO have been sued by their former management company for $7 million.  TMZ reported Friday that frontman DJ RedFoo was handed the papers for the breach of contract suit as he was heading into the "American Idol" studio Thursday night for a performance on the show.  The suit was filed by RPM Group, who claims it signed the duo in 2008 and were instrumental in releasing "From 0 to 60," only to be dismissed as soon as the duo gained national prominence.  RedFoo has not made any public comments on the lawsuit, and TMZ said he was laughing after being served and even posed for a picture of the process server.