The Boss is getting a Christmas bonus. Bruce Springsteen has sold his entire catalogue of music, including his master recordings and song publishing catalogue, to Sony Music Entertainment in a blockbuster deal that reportedly could be worth US$500 million. The record-setting transaction, which includes classic songs “Born to Run”, “Dancing in the Dark”, “Born in the USA” and hundreds of others stretching back nearly 50 years, will send Springsteen’s recorded masters to his long-time home Sony Music and his song publishing to its corporate sibling, Sony Music Publishing. The Boss’ holiday payday, which was first reported in Billboard, is the…