Timbaland, Dr. Dre surprise graduation party

FILE - In this Sept. 30, 2009 file photo, Dr. Dre poses for pictures at a news conference announcing, Heartbeats by Lady Gaga, the latest addition to the Beats by Dr. Dre family of headphones from Monster Cable, in New York. (AP Photo/Peter Kramer, File) (AP)

June 24, 2010 8:32:06 AM PDT
Dr. Dre and Timbaland went back to school Wednesday night.