Here at Music we like anything fresh (but not too fresh), and as such we tend to keep an eye out online for weird–yet–appealing new content. Mash–ups have been around for years, and often showcase the creativity of amateur and expert DJs alike, expertly weaving genres as diverse as cartoon themes and hip–hop; of course, this applies perfectly to this week’s mash–up, an amazing crossover between hip–hop legend Biggie Smalls, and train legend, Thomas. Check it out below.