Judas Priest has been bringing heavy metal to the masses since the 1970's.  Their catalog of songs is so huge it would be impossible for them to pick songs to put on one record of "greatest hits".  So instead they had their friends in the music industry do it.  Guys like Zakk Wylde, Gene Simmons, Kerry King, Slash, James Hetfield and Alice Cooper just to name a few.  The Chosen Few is available in stores now and contains a few hits, and also a few fan favorites.  A must have album for any Priest fan.